45323881 has 2 divisors, whose sum is σ = 45323882. Its totient is φ = 45323880.

The previous prime is 45323879. The next prime is 45323899. The reversal of 45323881 is 18832354.

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., 44675856 + 648025 = 6684^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 45323881 - 2¹ = 45323879 is a prime.

It is a super-2 number, since 2×45323881² = 4108508377804322, which contains 22 as substring.

Together with 45323879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45323281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22661940 + 22661941.

It is an arithmetic number, because the mean of its divisors is an integer number (22661941).

Almost surely, 2^45323881 is an apocalyptic number.

It is an amenable number.

45323881 is a deficient number, since it is larger than the sum of its proper divisors (1).

45323881 is an equidigital number, since it uses as much as digits as its factorization.

45323881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 34.

The square root of 45323881 is about 6732.3013153007. The cubic root of 45323881 is about 356.5406321897.

The spelling of 45323881 in words is "forty-five million, three hundred twenty-three thousand, eight hundred eighty-one".