274999957 has 2 divisors, whose sum is σ = 274999958. Its totient is φ = 274999956.

The previous prime is 274999919. The next prime is 274999993. The reversal of 274999957 is 759999472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196252081 + 78747876 = 14009^2 + 8874^2 .

It is a cyclic number.

It is not a de Polignac number, because 274999957 - 2¹¹ = 274997909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274999895 and 274999904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274999057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137499978 + 137499979.

It is an arithmetic number, because the mean of its divisors is an integer number (137499979).

Almost surely, 2^274999957 is an apocalyptic number.

It is an amenable number.

274999957 is a deficient number, since it is larger than the sum of its proper divisors (1).

274999957 is an equidigital number, since it uses as much as digits as its factorization.

274999957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12859560, while the sum is 61.

The square root of 274999957 is about 16583.1226552782. The cubic root of 274999957 is about 650.2956895315.

The spelling of 274999957 in words is "two hundred seventy-four million, nine hundred ninety-nine thousand, nine hundred fifty-seven".