158711438 has 16 divisors (see below), whose sum is σ = 243096336. Its totient is φ = 77696640.

The previous prime is 158711429. The next prime is 158711453. The reversal of 158711438 is 834117851.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14528 + ... + 22988.

It is an arithmetic number, because the mean of its divisors is an integer number (15193521).

Almost surely, 2^158711438 is an apocalyptic number.

158711438 is a deficient number, since it is larger than the sum of its proper divisors (84384898).

158711438 is a wasteful number, since it uses less digits than its factorization.

158711438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8659.

The product of its digits is 26880, while the sum is 38.

The square root of 158711438 is about 12598.0727891214. The cubic root of 158711438 is about 541.4222203156.

The spelling of 158711438 in words is "one hundred fifty-eight million, seven hundred eleven thousand, four hundred thirty-eight".