158661151 has 8 divisors (see below), whose sum is σ = 175276800. Its totient is φ = 142410840.

The previous prime is 158661137. The next prime is 158661169. The reversal of 158661151 is 151166851.

It is a happy number.

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

It is not a de Polignac number, because 158661151 - 2⁷ = 158661023 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 (158661121) by changing a digit.

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, 90421 + ... + 92158.

It is an arithmetic number, because the mean of its divisors is an integer number (21909600).

Almost surely, 2^158661151 is an apocalyptic number.

158661151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

158661151 is a deficient number, since it is larger than the sum of its proper divisors (16615649).

158661151 is a wasteful number, since it uses less digits than its factorization.

158661151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182669.

The product of its digits is 7200, while the sum is 34.

The square root of 158661151 is about 12596.0768098643. The cubic root of 158661151 is about 541.3650318827.

The spelling of 158661151 in words is "one hundred fifty-eight million, six hundred sixty-one thousand, one hundred fifty-one".