45541531 has 6 divisors (see below), whose sum is σ = 52976940. Its totient is φ = 39035556.

The previous prime is 45541523. The next prime is 45541547. The reversal of 45541531 is 13514554.

It is not a de Polignac number, because 45541531 - 2³ = 45541523 is a prime.

It is a super-2 number, since 2×45541531² = 4148062091647922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45541531.

It is not an unprimeable number, because it can be changed into a prime (45541501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464661 + ... + 464758.

It is an arithmetic number, because the mean of its divisors is an integer number (8829490).

Almost surely, 2^45541531 is an apocalyptic number.

45541531 is a deficient number, since it is larger than the sum of its proper divisors (7435409).

45541531 is an equidigital number, since it uses as much as digits as its factorization.

45541531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929433 (or 929426 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 45541531 is about 6748.4465619874. The cubic root of 45541531 is about 357.1104361655.

The spelling of 45541531 in words is "forty-five million, five hundred forty-one thousand, five hundred thirty-one".