45217751 has 2 divisors, whose sum is σ = 45217752. Its totient is φ = 45217750.

The previous prime is 45217729. The next prime is 45217763. The reversal of 45217751 is 15771254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45217751 - 2⁶ = 45217687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45210751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22608875 + 22608876.

It is an arithmetic number, because the mean of its divisors is an integer number (22608876).

Almost surely, 2^45217751 is an apocalyptic number.

45217751 is a deficient number, since it is larger than the sum of its proper divisors (1).

45217751 is an equidigital number, since it uses as much as digits as its factorization.

45217751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9800, while the sum is 32.

The square root of 45217751 is about 6724.4145470070. The cubic root of 45217751 is about 356.2621238923.

The spelling of 45217751 in words is "forty-five million, two hundred seventeen thousand, seven hundred fifty-one".