158822117 has 2 divisors, whose sum is σ = 158822118. Its totient is φ = 158822116.

The previous prime is 158822089. The next prime is 158822123. The reversal of 158822117 is 711228851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148620481 + 10201636 = 12191^2 + 3194^2 .

It is a cyclic number.

It is not a de Polignac number, because 158822117 - 2¹² = 158818021 is a prime.

It is a Chen prime.

It is equal to p_8911961 and since 158822117 and 8911961 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158822137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79411058 + 79411059.

It is an arithmetic number, because the mean of its divisors is an integer number (79411059).

Almost surely, 2^158822117 is an apocalyptic number.

It is an amenable number.

158822117 is a deficient number, since it is larger than the sum of its proper divisors (1).

158822117 is an equidigital number, since it uses as much as digits as its factorization.

158822117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8960, while the sum is 35.

The square root of 158822117 is about 12602.4647192523. The cubic root of 158822117 is about 541.5480464617.

The spelling of 158822117 in words is "one hundred fifty-eight million, eight hundred twenty-two thousand, one hundred seventeen".