158157311 has 16 divisors (see below), whose sum is σ = 183469440. Its totient is φ = 135082080.

The previous prime is 158157301. The next prime is 158157331. The reversal of 158157311 is 113751851.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158157311 is a prime.

It is a super-3 number, since 3×158157311³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158157301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3176 + ... + 18066.

It is an arithmetic number, because the mean of its divisors is an integer number (11466840).

Almost surely, 2^158157311 is an apocalyptic number.

158157311 is a deficient number, since it is larger than the sum of its proper divisors (25312129).

158157311 is a wasteful number, since it uses less digits than its factorization.

158157311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14966.

The product of its digits is 4200, while the sum is 32.

The square root of 158157311 is about 12576.0610287959. The cubic root of 158157311 is about 540.7913762422.

The spelling of 158157311 in words is "one hundred fifty-eight million, one hundred fifty-seven thousand, three hundred eleven".