158256415 has 16 divisors (see below), whose sum is σ = 200440800. Its totient is φ = 119619072.

The previous prime is 158256407. The next prime is 158256419. The reversal of 158256415 is 514652851.

It is a cyclic number.

It is not a de Polignac number, because 158256415 - 2³ = 158256407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158256419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36819 + ... + 40891.

It is an arithmetic number, because the mean of its divisors is an integer number (12527550).

Almost surely, 2^158256415 is an apocalyptic number.

158256415 is a deficient number, since it is larger than the sum of its proper divisors (42184385).

158256415 is a wasteful number, since it uses less digits than its factorization.

158256415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506.

The product of its digits is 48000, while the sum is 37.

The square root of 158256415 is about 12580.0005961844. Note that the first 3 decimals coincide. The cubic root of 158256415 is about 540.9043089455.

The spelling of 158256415 in words is "one hundred fifty-eight million, two hundred fifty-six thousand, four hundred fifteen".