45223291 has 2 divisors, whose sum is σ = 45223292. Its totient is φ = 45223290.

The previous prime is 45223279. The next prime is 45223301. The reversal of 45223291 is 19232254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45223291 - 2¹³ = 45215099 is a prime.

It is not a weakly prime, because it can be changed into another prime (45223201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22611645 + 22611646.

It is an arithmetic number, because the mean of its divisors is an integer number (22611646).

Almost surely, 2^45223291 is an apocalyptic number.

45223291 is a deficient number, since it is larger than the sum of its proper divisors (1).

45223291 is an equidigital number, since it uses as much as digits as its factorization.

45223291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 45223291 is about 6724.8264661625. The cubic root of 45223291 is about 356.2766728362.

The spelling of 45223291 in words is "forty-five million, two hundred twenty-three thousand, two hundred ninety-one".