45140461 has 2 divisors, whose sum is σ = 45140462. Its totient is φ = 45140460.

The previous prime is 45140437. The next prime is 45140489. The reversal of 45140461 is 16404154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42640900 + 2499561 = 6530^2 + 1581^2 .

It is a cyclic number.

It is not a de Polignac number, because 45140461 - 2⁵ = 45140429 is a prime.

It is a super-2 number, since 2×45140461² = 4075322438585042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45140261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22570230 + 22570231.

It is an arithmetic number, because the mean of its divisors is an integer number (22570231).

Almost surely, 2^45140461 is an apocalyptic number.

It is an amenable number.

45140461 is a deficient number, since it is larger than the sum of its proper divisors (1).

45140461 is an equidigital number, since it uses as much as digits as its factorization.

45140461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 45140461 is about 6718.6651203941. The cubic root of 45140461 is about 356.0590236899.

The spelling of 45140461 in words is "forty-five million, one hundred forty thousand, four hundred sixty-one".