275616431 has 2 divisors, whose sum is σ = 275616432. Its totient is φ = 275616430.

The previous prime is 275616409. The next prime is 275616433. The reversal of 275616431 is 134616572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 275616431 - 2¹⁴ = 275600047 is a prime.

It is a super-2 number, since 2×275616431² = 151928834074355522, which contains 22 as substring.

Together with 275616433, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 275616391 and 275616400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275616433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137808215 + 137808216.

It is an arithmetic number, because the mean of its divisors is an integer number (137808216).

Almost surely, 2^275616431 is an apocalyptic number.

275616431 is a deficient number, since it is larger than the sum of its proper divisors (1).

275616431 is an equidigital number, since it uses as much as digits as its factorization.

275616431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 275616431 is about 16601.6996419041. The cubic root of 275616431 is about 650.7812546929.

The spelling of 275616431 in words is "two hundred seventy-five million, six hundred sixteen thousand, four hundred thirty-one".