148887540 has 72 divisors (see below), whose sum is σ = 461260800. Its totient is φ = 38856384.

The previous prime is 148887491. The next prime is 148887559. The reversal of 148887540 is 45788841.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 340 + ... + 17259.

It is an arithmetic number, because the mean of its divisors is an integer number (6406400).

Almost surely, 2^148887540 is an apocalyptic number.

148887540 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 148887540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230630400).

148887540 is an abundant number, since it is smaller than the sum of its proper divisors (312373260).

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

148887540 is a wasteful number, since it uses less digits than its factorization.

148887540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17661 (or 17656 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 148887540 is about 12201.9482051023. The cubic root of 148887540 is about 530.0125071215.

The spelling of 148887540 in words is "one hundred forty-eight million, eight hundred eighty-seven thousand, five hundred forty".