65454931 has 2 divisors, whose sum is σ = 65454932. Its totient is φ = 65454930.

The previous prime is 65454889. The next prime is 65454937. The reversal of 65454931 is 13945456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65454931 - 2⁹ = 65454419 is a prime.

It is a super-2 number, since 2×65454931² = 8568695984429522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65454937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32727465 + 32727466.

It is an arithmetic number, because the mean of its divisors is an integer number (32727466).

Almost surely, 2^65454931 is an apocalyptic number.

65454931 is a deficient number, since it is larger than the sum of its proper divisors (1).

65454931 is an equidigital number, since it uses as much as digits as its factorization.

65454931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 37.

The square root of 65454931 is about 8090.4221768706. The cubic root of 65454931 is about 403.0084230025.

It can be divided in two parts, 6545 and 4931, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 65454931 in words is "sixty-five million, four hundred fifty-four thousand, nine hundred thirty-one".