45403837 has 2 divisors, whose sum is σ = 45403838. Its totient is φ = 45403836.

The previous prime is 45403801. The next prime is 45403877. The reversal of 45403837 is 73830454.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 326041 = 6714^2 + 571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45403837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45403877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22701918 + 22701919.

It is an arithmetic number, because the mean of its divisors is an integer number (22701919).

Almost surely, 2^45403837 is an apocalyptic number.

It is an amenable number.

45403837 is a deficient number, since it is larger than the sum of its proper divisors (1).

45403837 is an equidigital number, since it uses as much as digits as its factorization.

45403837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 45403837 is about 6738.2369355789. The cubic root of 45403837 is about 356.7501671717.

The spelling of 45403837 in words is "forty-five million, four hundred three thousand, eight hundred thirty-seven".