65113409 has 2 divisors, whose sum is σ = 65113410. Its totient is φ = 65113408.

The previous prime is 65113393. The next prime is 65113429. The reversal of 65113409 is 90431156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57047809 + 8065600 = 7553^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 65113409 - 2⁴ = 65113393 is a prime.

It is not a weakly prime, because it can be changed into another prime (65113429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32556704 + 32556705.

It is an arithmetic number, because the mean of its divisors is an integer number (32556705).

Almost surely, 2^65113409 is an apocalyptic number.

It is an amenable number.

65113409 is a deficient number, since it is larger than the sum of its proper divisors (1).

65113409 is an equidigital number, since it uses as much as digits as its factorization.

65113409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 65113409 is about 8069.2880107231. The cubic root of 65113409 is about 402.3062792177.

The spelling of 65113409 in words is "sixty-five million, one hundred thirteen thousand, four hundred nine".