275791951 has 2 divisors, whose sum is σ = 275791952. Its totient is φ = 275791950.

The previous prime is 275791949. The next prime is 275791961. The reversal of 275791951 is 159197572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275791951 - 2¹ = 275791949 is a prime.

It is a super-2 number, since 2×275791951² = 152122400472772802, which contains 22 as substring.

Together with 275791949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275791921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137895975 + 137895976.

It is an arithmetic number, because the mean of its divisors is an integer number (137895976).

Almost surely, 2^275791951 is an apocalyptic number.

275791951 is a deficient number, since it is larger than the sum of its proper divisors (1).

275791951 is an equidigital number, since it uses as much as digits as its factorization.

275791951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 46.

The square root of 275791951 is about 16606.9850063159. The cubic root of 275791951 is about 650.9193704151.

The spelling of 275791951 in words is "two hundred seventy-five million, seven hundred ninety-one thousand, nine hundred fifty-one".