45290251 has 2 divisors, whose sum is σ = 45290252. Its totient is φ = 45290250.

The previous prime is 45290239. The next prime is 45290269. The reversal of 45290251 is 15209254.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45290251 - 2¹³ = 45282059 is a prime.

It is not a weakly prime, because it can be changed into another prime (45290291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22645125 + 22645126.

It is an arithmetic number, because the mean of its divisors is an integer number (22645126).

Almost surely, 2^45290251 is an apocalyptic number.

45290251 is a deficient number, since it is larger than the sum of its proper divisors (1).

45290251 is an equidigital number, since it uses as much as digits as its factorization.

45290251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45290251 is about 6729.8031917731. The cubic root of 45290251 is about 356.4524268254.

The spelling of 45290251 in words is "forty-five million, two hundred ninety thousand, two hundred fifty-one".