158341631 has 8 divisors (see below), whose sum is σ = 185375904. Its totient is φ = 132410880.

The previous prime is 158341619. The next prime is 158341633. The reversal of 158341631 is 136143851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-158341631 is a prime.

It is a super-2 number, since 2×158341631² = 50144144215480322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158341633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275570 + ... + 276143.

It is an arithmetic number, because the mean of its divisors is an integer number (23171988).

Almost surely, 2^158341631 is an apocalyptic number.

158341631 is a deficient number, since it is larger than the sum of its proper divisors (27034273).

158341631 is an equidigital number, since it uses as much as digits as its factorization.

158341631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551761.

The product of its digits is 8640, while the sum is 32.

The square root of 158341631 is about 12583.3871036379. The cubic root of 158341631 is about 541.0013780611.

The spelling of 158341631 in words is "one hundred fifty-eight million, three hundred forty-one thousand, six hundred thirty-one".