45436813 has 2 divisors, whose sum is σ = 45436814. Its totient is φ = 45436812.

The previous prime is 45436757. The next prime is 45436819. The reversal of 45436813 is 31863454.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38975049 + 6461764 = 6243^2 + 2542^2 .

It is a cyclic number.

It is not a de Polignac number, because 45436813 - 2²¹ = 43339661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45436819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22718406 + 22718407.

It is an arithmetic number, because the mean of its divisors is an integer number (22718407).

Almost surely, 2^45436813 is an apocalyptic number.

It is an amenable number.

45436813 is a deficient number, since it is larger than the sum of its proper divisors (1).

45436813 is an equidigital number, since it uses as much as digits as its factorization.

45436813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 45436813 is about 6740.6834223245. The cubic root of 45436813 is about 356.8365133735.

The spelling of 45436813 in words is "forty-five million, four hundred thirty-six thousand, eight hundred thirteen".