148742740 has 48 divisors (see below), whose sum is σ = 324550800. Its totient is φ = 57193472.

The previous prime is 148742729. The next prime is 148742761. The reversal of 148742740 is 47247841.

It can be written as a sum of positive squares in 8 ways, for example, as 1993744 + 146748996 = 1412^2 + 12114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 148742740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183456 + ... + 184264.

It is an arithmetic number, because the mean of its divisors is an integer number (6761475).

Almost surely, 2^148742740 is an apocalyptic number.

148742740 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 148742740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162275400).

148742740 is an abundant number, since it is smaller than the sum of its proper divisors (175808060).

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

148742740 is a wasteful number, since it uses less digits than its factorization.

148742740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 37.

The square root of 148742740 is about 12196.0132830364. The cubic root of 148742740 is about 529.8406308537.

The spelling of 148742740 in words is "one hundred forty-eight million, seven hundred forty-two thousand, seven hundred forty".