155515413 has 16 divisors (see below), whose sum is σ = 212325696. Its totient is φ = 101216640.

The previous prime is 155515387. The next prime is 155515417. The reversal of 155515413 is 314515551.

It is not a de Polignac number, because 155515413 - 2⁹ = 155514901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155515417) 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 15 ways as a sum of consecutive naturals, for example, 21970 + ... + 28172.

It is an arithmetic number, because the mean of its divisors is an integer number (13270356).

Almost surely, 2^155515413 is an apocalyptic number.

It is an amenable number.

155515413 is a deficient number, since it is larger than the sum of its proper divisors (56810283).

155515413 is a wasteful number, since it uses less digits than its factorization.

155515413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404.

The product of its digits is 7500, while the sum is 30.

The square root of 155515413 is about 12470.5819030228. The cubic root of 155515413 is about 537.7632824455.

The spelling of 155515413 in words is "one hundred fifty-five million, five hundred fifteen thousand, four hundred thirteen".