45642761 has 2 divisors, whose sum is σ = 45642762. Its totient is φ = 45642760.

The previous prime is 45642713. The next prime is 45642767. The reversal of 45642761 is 16724654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 336400 = 6731^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 45642761 - 2¹⁴ = 45626377 is a prime.

It is not a weakly prime, because it can be changed into another prime (45642767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22821380 + 22821381.

It is an arithmetic number, because the mean of its divisors is an integer number (22821381).

Almost surely, 2^45642761 is an apocalyptic number.

It is an amenable number.

45642761 is a deficient number, since it is larger than the sum of its proper divisors (1).

45642761 is an equidigital number, since it uses as much as digits as its factorization.

45642761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 45642761 is about 6755.9426433326. The cubic root of 45642761 is about 357.3748361294.

The spelling of 45642761 in words is "forty-five million, six hundred forty-two thousand, seven hundred sixty-one".