65045831 has 2 divisors, whose sum is σ = 65045832. Its totient is φ = 65045830.

The previous prime is 65045821. The next prime is 65045837. The reversal of 65045831 is 13854056.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65045831 - 2⁶ = 65045767 is a prime.

It is a super-2 number, since 2×65045831² = 8461920260961122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65045837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32522915 + 32522916.

It is an arithmetic number, because the mean of its divisors is an integer number (32522916).

Almost surely, 2^65045831 is an apocalyptic number.

65045831 is a deficient number, since it is larger than the sum of its proper divisors (1).

65045831 is an equidigital number, since it uses as much as digits as its factorization.

65045831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 65045831 is about 8065.0995654115. The cubic root of 65045831 is about 402.1670530841.

Adding to 65045831 its reverse (13854056), we get a palindrome (78899887).

The spelling of 65045831 in words is "sixty-five million, forty-five thousand, eight hundred thirty-one".