155042512 has 20 divisors (see below), whose sum is σ = 301121476. Its totient is φ = 77333760.

The previous prime is 155042507. The next prime is 155042513. The reversal of 155042512 is 215240551.

155042512 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28344976 + 126697536 = 5324^2 + 11256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155042513) 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, 4773 + ... + 18244.

Almost surely, 2^155042512 is an apocalyptic number.

It is an amenable number.

155042512 is a deficient number, since it is larger than the sum of its proper divisors (146078964).

155042512 is a wasteful number, since it uses less digits than its factorization.

155042512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23446 (or 23440 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 155042512 is about 12451.6068039430. The cubic root of 155042512 is about 537.2176409167.

The spelling of 155042512 in words is "one hundred fifty-five million, forty-two thousand, five hundred twelve".