158486538 has 32 divisors (see below), whose sum is σ = 369967104. Its totient is φ = 44317872.

The previous prime is 158486527. The next prime is 158486579. The reversal of 158486538 is 835684851.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38170 + ... + 42117.

It is an arithmetic number, because the mean of its divisors is an integer number (11561472).

Almost surely, 2^158486538 is an apocalyptic number.

158486538 is an abundant number, since it is smaller than the sum of its proper divisors (211480566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158486538 is a wasteful number, since it uses less digits than its factorization.

158486538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80346.

The product of its digits is 921600, while the sum is 48.

The square root of 158486538 is about 12589.1436563414. The cubic root of 158486538 is about 541.1663609610.

The spelling of 158486538 in words is "one hundred fifty-eight million, four hundred eighty-six thousand, five hundred thirty-eight".