158215486 has 24 divisors (see below), whose sum is σ = 280931112. Its totient is φ = 66382800.

The previous prime is 158215483. The next prime is 158215487. The reversal of 158215486 is 684512851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158215483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22000 + ... + 28291.

It is an arithmetic number, because the mean of its divisors is an integer number (11705463).

Almost surely, 2^158215486 is an apocalyptic number.

158215486 is a deficient number, since it is larger than the sum of its proper divisors (122715626).

158215486 is a wasteful number, since it uses less digits than its factorization.

158215486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50328 (or 50317 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 158215486 is about 12578.3737422610. The cubic root of 158215486 is about 540.8576745405.

The spelling of 158215486 in words is "one hundred fifty-eight million, two hundred fifteen thousand, four hundred eighty-six".