45544039 has 4 divisors (see below), whose sum is σ = 45705256. Its totient is φ = 45382824.

The previous prime is 45544021. The next prime is 45544067. The reversal of 45544039 is 93044554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93044554 = 2 ⋅46522277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45544039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45543995 and 45544013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45544069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80184 + ... + 80749.

It is an arithmetic number, because the mean of its divisors is an integer number (11426314).

Almost surely, 2^45544039 is an apocalyptic number.

45544039 is a deficient number, since it is larger than the sum of its proper divisors (161217).

45544039 is a wasteful number, since it uses less digits than its factorization.

45544039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161216.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 45544039 is about 6748.6323799715. The cubic root of 45544039 is about 357.1169914753.

The spelling of 45544039 in words is "forty-five million, five hundred forty-four thousand, thirty-nine".