693100157 has 2 divisors, whose sum is σ = 693100158. Its totient is φ = 693100156.

The previous prime is 693100123. The next prime is 693100159. The reversal of 693100157 is 751001396.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647753401 + 45346756 = 25451^2 + 6734^2 .

It is a cyclic number.

It is not a de Polignac number, because 693100157 - 2²² = 688905853 is a prime.

Together with 693100159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (693100159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346550078 + 346550079.

It is an arithmetic number, because the mean of its divisors is an integer number (346550079).

Almost surely, 2^693100157 is an apocalyptic number.

It is an amenable number.

693100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

693100157 is an equidigital number, since it uses as much as digits as its factorization.

693100157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 693100157 is about 26326.7954183566. The cubic root of 693100157 is about 884.9770311210.

The spelling of 693100157 in words is "six hundred ninety-three million, one hundred thousand, one hundred fifty-seven".