45251797 has 2 divisors, whose sum is σ = 45251798. Its totient is φ = 45251796.

The previous prime is 45251743. The next prime is 45251809. The reversal of 45251797 is 79715254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43903876 + 1347921 = 6626^2 + 1161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45251797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45291797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22625898 + 22625899.

It is an arithmetic number, because the mean of its divisors is an integer number (22625899).

Almost surely, 2^45251797 is an apocalyptic number.

It is an amenable number.

45251797 is a deficient number, since it is larger than the sum of its proper divisors (1).

45251797 is an equidigital number, since it uses as much as digits as its factorization.

45251797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 45251797 is about 6726.9455921689. The cubic root of 45251797 is about 356.3515154630.

The spelling of 45251797 in words is "forty-five million, two hundred fifty-one thousand, seven hundred ninety-seven".