158891542 has 16 divisors (see below), whose sum is σ = 245337120. Its totient is φ = 77122368.

The previous prime is 158891533. The next prime is 158891561. The reversal of 158891542 is 245198851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33834 + ... + 38242.

It is an arithmetic number, because the mean of its divisors is an integer number (15333570).

Almost surely, 2^158891542 is an apocalyptic number.

158891542 is a deficient number, since it is larger than the sum of its proper divisors (86445578).

158891542 is a wasteful number, since it uses less digits than its factorization.

158891542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4935.

The product of its digits is 115200, while the sum is 43.

The square root of 158891542 is about 12605.2188398298. The cubic root of 158891542 is about 541.6269428962.

The spelling of 158891542 in words is "one hundred fifty-eight million, eight hundred ninety-one thousand, five hundred forty-two".