612166157 has 2 divisors, whose sum is σ = 612166158. Its totient is φ = 612166156.

The previous prime is 612166097. The next prime is 612166193. The reversal of 612166157 is 751661216.

612166157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 557243236 + 54922921 = 23606^2 + 7411^2 .

It is a cyclic number.

It is not a de Polignac number, because 612166157 - 2¹⁰ = 612165133 is a prime.

It is a super-2 number, since 2×612166157² = 749494807552297298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612162157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306083078 + 306083079.

It is an arithmetic number, because the mean of its divisors is an integer number (306083079).

Almost surely, 2^612166157 is an apocalyptic number.

It is an amenable number.

612166157 is a deficient number, since it is larger than the sum of its proper divisors (1).

612166157 is an equidigital number, since it uses as much as digits as its factorization.

612166157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 612166157 is about 24741.9917751179. The cubic root of 612166157 is about 849.0953036346.

The spelling of 612166157 in words is "six hundred twelve million, one hundred sixty-six thousand, one hundred fifty-seven".