45194729 has 2 divisors, whose sum is σ = 45194730. Its totient is φ = 45194728.

The previous prime is 45194719. The next prime is 45194801. The reversal of 45194729 is 92749154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40615129 + 4579600 = 6373^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 45194729 - 2⁴ = 45194713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45194719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22597364 + 22597365.

It is an arithmetic number, because the mean of its divisors is an integer number (22597365).

Almost surely, 2^45194729 is an apocalyptic number.

It is an amenable number.

45194729 is a deficient number, since it is larger than the sum of its proper divisors (1).

45194729 is an equidigital number, since it uses as much as digits as its factorization.

45194729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 45194729 is about 6722.7025071767. The cubic root of 45194729 is about 356.2016516310.

The spelling of 45194729 in words is "forty-five million, one hundred ninety-four thousand, seven hundred twenty-nine".