151699728 has 20 divisors (see below), whose sum is σ = 391891088. Its totient is φ = 50566560.

The previous prime is 151699711. The next prime is 151699729. The reversal of 151699728 is 827996151.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 3160411 = 151699728 / (1 + 5 + 1 + 6 + 9 + 9 + 7 + 2 + 8).

It is not an unprimeable number, because it can be changed into a prime (151699729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1580158 + ... + 1580253.

Almost surely, 2^151699728 is an apocalyptic number.

It is an amenable number.

151699728 is an abundant number, since it is smaller than the sum of its proper divisors (240191360).

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

151699728 is a wasteful number, since it uses less digits than its factorization.

151699728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160422 (or 3160416 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The square root of 151699728 is about 12316.6443481981. The cubic root of 151699728 is about 533.3286742649.

The spelling of 151699728 in words is "one hundred fifty-one million, six hundred ninety-nine thousand, seven hundred twenty-eight".