158438951 has 8 divisors (see below), whose sum is σ = 172969344. Its totient is φ = 143929720.

The previous prime is 158438947. The next prime is 158438971. The reversal of 158438951 is 159834851.

158438951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 158438951 - 2² = 158438947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158438971) 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, 13196 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (21621168).

Almost surely, 2^158438951 is an apocalyptic number.

158438951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158438951 is a deficient number, since it is larger than the sum of its proper divisors (14530393).

158438951 is a wasteful number, since it uses less digits than its factorization.

158438951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10581.

The product of its digits is 172800, while the sum is 44.

The square root of 158438951 is about 12587.2535129789. The cubic root of 158438951 is about 541.1121921930.

The spelling of 158438951 in words is "one hundred fifty-eight million, four hundred thirty-eight thousand, nine hundred fifty-one".