45406729 has 2 divisors, whose sum is σ = 45406730. Its totient is φ = 45406728.

The previous prime is 45406709. The next prime is 45406759. The reversal of 45406729 is 92760454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23765625 + 21641104 = 4875^2 + 4652^2 .

It is a cyclic number.

It is not a de Polignac number, because 45406729 - 2⁹ = 45406217 is a prime.

It is not a weakly prime, because it can be changed into another prime (45406709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22703364 + 22703365.

It is an arithmetic number, because the mean of its divisors is an integer number (22703365).

Almost surely, 2^45406729 is an apocalyptic number.

It is an amenable number.

45406729 is a deficient number, since it is larger than the sum of its proper divisors (1).

45406729 is an equidigital number, since it uses as much as digits as its factorization.

45406729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 45406729 is about 6738.4515283558. The cubic root of 45406729 is about 356.7577414183.

The spelling of 45406729 in words is "forty-five million, four hundred six thousand, seven hundred twenty-nine".