465061561 has 2 divisors, whose sum is σ = 465061562. Its totient is φ = 465061560.

The previous prime is 465061549. The next prime is 465061567. The reversal of 465061561 is 165160564.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287505936 + 177555625 = 16956^2 + 13325^2 .

It is a cyclic number.

It is not a de Polignac number, because 465061561 - 2¹¹ = 465059513 is a prime.

It is not a weakly prime, because it can be changed into another prime (465061567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232530780 + 232530781.

It is an arithmetic number, because the mean of its divisors is an integer number (232530781).

Almost surely, 2^465061561 is an apocalyptic number.

It is an amenable number.

465061561 is a deficient number, since it is larger than the sum of its proper divisors (1).

465061561 is an equidigital number, since it uses as much as digits as its factorization.

465061561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 465061561 is about 21565.2860171156. The cubic root of 465061561 is about 774.7652766796.

The spelling of 465061561 in words is "four hundred sixty-five million, sixty-one thousand, five hundred sixty-one".