45083021 has 12 divisors (see below), whose sum is σ = 47629440. Its totient is φ = 42616080.

The previous prime is 45082979. The next prime is 45083041. The reversal of 45083021 is 12038054.

It is not a de Polignac number, because 45083021 - 2⁶ = 45082957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45083041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287075 + ... + 287231.

It is an arithmetic number, because the mean of its divisors is an integer number (3969120).

Almost surely, 2^45083021 is an apocalyptic number.

It is an amenable number.

45083021 is a deficient number, since it is larger than the sum of its proper divisors (2546419).

45083021 is an equidigital number, since it uses as much as digits as its factorization.

45083021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 45083021 is about 6714.3891010277. The cubic root of 45083021 is about 355.9079344684.

The spelling of 45083021 in words is "forty-five million, eighty-three thousand, twenty-one".