45003531 has 8 divisors (see below), whose sum is σ = 60036160. Its totient is φ = 29986632.

The previous prime is 45003521. The next prime is 45003559. The reversal of 45003531 is 13530054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45003531 - 2⁶ = 45003467 is a prime.

It is a super-2 number, since 2×45003531² = 4050635604935922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45003498 and 45003507.

It is not an unprimeable number, because it can be changed into a prime (45003521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7476 + ... + 12078.

It is an arithmetic number, because the mean of its divisors is an integer number (7504520).

Almost surely, 2^45003531 is an apocalyptic number.

45003531 is a deficient number, since it is larger than the sum of its proper divisors (15032629).

45003531 is a wasteful number, since it uses less digits than its factorization.

45003531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 45003531 is about 6708.4671125377. The cubic root of 45003531 is about 355.6986334577.

Adding to 45003531 its reverse (13530054), we get a palindrome (58533585).

The spelling of 45003531 in words is "forty-five million, three thousand, five hundred thirty-one".