155430512 has 20 divisors (see below), whose sum is σ = 303912840. Its totient is φ = 77001408.

The previous prime is 155430511. The next prime is 155430547. The reversal of 155430512 is 215034551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155430511) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 42818 + ... + 46305.

It is an arithmetic number, because the mean of its divisors is an integer number (15195642).

Almost surely, 2^155430512 is an apocalyptic number.

It is an amenable number.

155430512 is a deficient number, since it is larger than the sum of its proper divisors (148482328).

155430512 is a wasteful number, since it uses less digits than its factorization.

155430512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89240 (or 89234 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 155430512 is about 12467.1773870431. The cubic root of 155430512 is about 537.6654037196.

The spelling of 155430512 in words is "one hundred fifty-five million, four hundred thirty thousand, five hundred twelve".