83740157 has 2 divisors, whose sum is σ = 83740158. Its totient is φ = 83740156.

The previous prime is 83740141. The next prime is 83740187. The reversal of 83740157 is 75104738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79459396 + 4280761 = 8914^2 + 2069^2 .

It is a cyclic number.

It is not a de Polignac number, because 83740157 - 2⁴ = 83740141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83740187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41870078 + 41870079.

It is an arithmetic number, because the mean of its divisors is an integer number (41870079).

Almost surely, 2^83740157 is an apocalyptic number.

It is an amenable number.

83740157 is a deficient number, since it is larger than the sum of its proper divisors (1).

83740157 is an equidigital number, since it uses as much as digits as its factorization.

83740157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 83740157 is about 9150.9648125211. The cubic root of 83740157 is about 437.4998652517.

The spelling of 83740157 in words is "eighty-three million, seven hundred forty thousand, one hundred fifty-seven".