80123957 has 2 divisors, whose sum is σ = 80123958. Its totient is φ = 80123956.

The previous prime is 80123887. The next prime is 80123959. The reversal of 80123957 is 75932108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47416996 + 32706961 = 6886^2 + 5719^2 .

It is a cyclic number.

It is not a de Polignac number, because 80123957 - 2²² = 75929653 is a prime.

Together with 80123959, 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 (80123959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40061978 + 40061979.

It is an arithmetic number, because the mean of its divisors is an integer number (40061979).

Almost surely, 2^80123957 is an apocalyptic number.

It is an amenable number.

80123957 is a deficient number, since it is larger than the sum of its proper divisors (1).

80123957 is an equidigital number, since it uses as much as digits as its factorization.

80123957 is an evil number, because the sum of its binary digits is even.

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

The square root of 80123957 is about 8951.1986348198. The cubic root of 80123957 is about 431.1093708795.

The spelling of 80123957 in words is "eighty million, one hundred twenty-three thousand, nine hundred fifty-seven".