387158331 has 16 divisors (see below), whose sum is σ = 596040704. Its totient is φ = 218951424.

The previous prime is 387158329. The next prime is 387158353. The reversal of 387158331 is 133851783.

It is not a de Polignac number, because 387158331 - 2¹ = 387158329 is a prime.

It is a super-2 number, since 2×387158331² = 299783146525411122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 387158331.

It is not an unprimeable number, because it can be changed into a prime (387158311) 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, 92995 + ... + 97068.

It is an arithmetic number, because the mean of its divisors is an integer number (37252544).

Almost surely, 2^387158331 is an apocalyptic number.

387158331 is a deficient number, since it is larger than the sum of its proper divisors (208882373).

387158331 is a wasteful number, since it uses less digits than its factorization.

387158331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190170.

The product of its digits is 60480, while the sum is 39.

The square root of 387158331 is about 19676.3393699133. The cubic root of 387158331 is about 728.8355307211.

The spelling of 387158331 in words is "three hundred eighty-seven million, one hundred fifty-eight thousand, three hundred thirty-one".