158766061 has 2 divisors, whose sum is σ = 158766062. Its totient is φ = 158766060.

The previous prime is 158766053. The next prime is 158766067. The reversal of 158766061 is 160667851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140873161 + 17892900 = 11869^2 + 4230^2 .

It is a cyclic number.

It is not a de Polignac number, because 158766061 - 2³ = 158766053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158766067) 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 as a sum of consecutive naturals, namely, 79383030 + 79383031.

It is an arithmetic number, because the mean of its divisors is an integer number (79383031).

Almost surely, 2^158766061 is an apocalyptic number.

It is an amenable number.

158766061 is a deficient number, since it is larger than the sum of its proper divisors (1).

158766061 is an equidigital number, since it uses as much as digits as its factorization.

158766061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 158766061 is about 12600.2405135775. The cubic root of 158766061 is about 541.4843261393.

The spelling of 158766061 in words is "one hundred fifty-eight million, seven hundred sixty-six thousand, sixty-one".