45405187 has 2 divisors, whose sum is σ = 45405188. Its totient is φ = 45405186.

The previous prime is 45405169. The next prime is 45405203. The reversal of 45405187 is 78150454.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45405187 is a prime.

It is not a weakly prime, because it can be changed into another prime (45405127) 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, 22702593 + 22702594.

It is an arithmetic number, because the mean of its divisors is an integer number (22702594).

Almost surely, 2^45405187 is an apocalyptic number.

45405187 is a deficient number, since it is larger than the sum of its proper divisors (1).

45405187 is an equidigital number, since it uses as much as digits as its factorization.

45405187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 45405187 is about 6738.3371094061. The cubic root of 45405187 is about 356.7537029077.

The spelling of 45405187 in words is "forty-five million, four hundred five thousand, one hundred eighty-seven".