45186923 has 2 divisors, whose sum is σ = 45186924. Its totient is φ = 45186922.

The previous prime is 45186917. The next prime is 45186949. The reversal of 45186923 is 32968154.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45186923 - 2⁶ = 45186859 is a prime.

It is not a weakly prime, because it can be changed into another prime (45186913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22593461 + 22593462.

It is an arithmetic number, because the mean of its divisors is an integer number (22593462).

Almost surely, 2^45186923 is an apocalyptic number.

45186923 is a deficient number, since it is larger than the sum of its proper divisors (1).

45186923 is an equidigital number, since it uses as much as digits as its factorization.

45186923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 38.

The square root of 45186923 is about 6722.1219120156. The cubic root of 45186923 is about 356.1811428220.

The spelling of 45186923 in words is "forty-five million, one hundred eighty-six thousand, nine hundred twenty-three".