155630748 has 144 divisors (see below), whose sum is σ = 473867520. Its totient is φ = 38817792.

The previous prime is 155630707. The next prime is 155630809. The reversal of 155630748 is 847036551.

155630748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269436 + ... + 270012.

Almost surely, 2^155630748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155630748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236933760).

155630748 is an abundant number, since it is smaller than the sum of its proper divisors (318236772).

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

155630748 is a wasteful number, since it uses less digits than its factorization.

155630748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 155630748 is about 12475.2053289715. The cubic root of 155630748 is about 537.8961901760.

The spelling of 155630748 in words is "one hundred fifty-five million, six hundred thirty thousand, seven hundred forty-eight".