45216427 has 2 divisors, whose sum is σ = 45216428. Its totient is φ = 45216426.

The previous prime is 45216389. The next prime is 45216467. The reversal of 45216427 is 72461254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45216427 - 2⁷ = 45216299 is a prime.

It is not a weakly prime, because it can be changed into another prime (45216467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22608213 + 22608214.

It is an arithmetic number, because the mean of its divisors is an integer number (22608214).

Almost surely, 2^45216427 is an apocalyptic number.

45216427 is a deficient number, since it is larger than the sum of its proper divisors (1).

45216427 is an equidigital number, since it uses as much as digits as its factorization.

45216427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 45216427 is about 6724.3160990542. The cubic root of 45216427 is about 356.2586466764.

The spelling of 45216427 in words is "forty-five million, two hundred sixteen thousand, four hundred twenty-seven".