148503640 has 128 divisors (see below), whose sum is σ = 371589120. Its totient is φ = 53222400.

The previous prime is 148503637. The next prime is 148503643. The reversal of 148503640 is 46305841.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (148503637) and next prime (148503643).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148503643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1169257 + ... + 1169383.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^148503640 is an apocalyptic number.

148503640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 148503640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185794560).

148503640 is an abundant number, since it is smaller than the sum of its proper divisors (223085480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

148503640 is a wasteful number, since it uses less digits than its factorization.

148503640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 148503640 is about 12186.2069570478. The cubic root of 148503640 is about 529.5565770204.

The spelling of 148503640 in words is "one hundred forty-eight million, five hundred three thousand, six hundred forty".