83412157 has 2 divisors, whose sum is σ = 83412158. Its totient is φ = 83412156.

The previous prime is 83412083. The next prime is 83412167. The reversal of 83412157 is 75121438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75238276 + 8173881 = 8674^2 + 2859^2 .

It is a cyclic number.

It is not a de Polignac number, because 83412157 - 2⁷ = 83412029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83412167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41706078 + 41706079.

It is an arithmetic number, because the mean of its divisors is an integer number (41706079).

Almost surely, 2^83412157 is an apocalyptic number.

It is an amenable number.

83412157 is a deficient number, since it is larger than the sum of its proper divisors (1).

83412157 is an equidigital number, since it uses as much as digits as its factorization.

83412157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 83412157 is about 9133.0256213371. The cubic root of 83412157 is about 436.9279066000.

The spelling of 83412157 in words is "eighty-three million, four hundred twelve thousand, one hundred fifty-seven".