45727291 has 2 divisors, whose sum is σ = 45727292. Its totient is φ = 45727290.

The previous prime is 45727277. The next prime is 45727309. The reversal of 45727291 is 19272754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45727291 - 2⁷ = 45727163 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45727291.

It is not a weakly prime, because it can be changed into another prime (45727211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22863645 + 22863646.

It is an arithmetic number, because the mean of its divisors is an integer number (22863646).

Almost surely, 2^45727291 is an apocalyptic number.

45727291 is a deficient number, since it is larger than the sum of its proper divisors (1).

45727291 is an equidigital number, since it uses as much as digits as its factorization.

45727291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 37.

The square root of 45727291 is about 6762.1957232840. The cubic root of 45727291 is about 357.5953184471.

It can be divided in two parts, 45 and 727291, that multiplied together give a triangular number (32728095 = T₈₀₉₀).

The spelling of 45727291 in words is "forty-five million, seven hundred twenty-seven thousand, two hundred ninety-one".