65394031 has 2 divisors, whose sum is σ = 65394032. Its totient is φ = 65394030.

The previous prime is 65394001. The next prime is 65394041. The reversal of 65394031 is 13049356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65394031 - 2⁷ = 65393903 is a prime.

It is a super-2 number, since 2×65394031² = 8552758580857922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65393984 and 65394002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65394001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32697015 + 32697016.

It is an arithmetic number, because the mean of its divisors is an integer number (32697016).

Almost surely, 2^65394031 is an apocalyptic number.

65394031 is a deficient number, since it is larger than the sum of its proper divisors (1).

65394031 is an equidigital number, since it uses as much as digits as its factorization.

65394031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 65394031 is about 8086.6575913662. The cubic root of 65394031 is about 402.8833963707.

The spelling of 65394031 in words is "sixty-five million, three hundred ninety-four thousand, thirty-one".