45441081 has 45 divisors (see below), whose sum is σ = 79708629. Its totient is φ = 25723656.

The previous prime is 45441073. The next prime is 45441083. The reversal of 45441081 is 18014454.

It is a happy number.

The square root of 45441081 is 6741.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 45441081 - 2³ = 45441073 is a prime.

It is a super-2 number, since 2×45441081² = 4129783684897122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45441083) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 424630 + ... + 424736.

Almost surely, 2^45441081 is an apocalyptic number.

45441081 is the 6741-st square number.

45441081 is the 3371-st centered octagonal number.

It is an amenable number.

45441081 is a deficient number, since it is larger than the sum of its proper divisors (34267548).

45441081 is an equidigital number, since it uses as much as digits as its factorization.

45441081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The cubic root of 45441081 is about 356.8476858895.

It can be divided in two parts, 4544 and 1081, that added together give a square (5625 = 75²).

The spelling of 45441081 in words is "forty-five million, four hundred forty-one thousand, eighty-one".