45270531 has 12 divisors (see below), whose sum is σ = 65499408. Its totient is φ = 30130224.

The previous prime is 45270517. The next prime is 45270553. The reversal of 45270531 is 13507254.

It is a happy number.

It is not a de Polignac number, because 45270531 - 2⁹ = 45270019 is a prime.

It is a super-2 number, since 2×45270531² = 4098841954043922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45270495 and 45270504.

It is not an unprimeable number, because it can be changed into a prime (45270581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2026 + ... + 9728.

It is an arithmetic number, because the mean of its divisors is an integer number (5458284).

Almost surely, 2^45270531 is an apocalyptic number.

45270531 is a deficient number, since it is larger than the sum of its proper divisors (20228877).

45270531 is a wasteful number, since it uses less digits than its factorization.

45270531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8362 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45270531 is about 6728.3379076857. The cubic root of 45270531 is about 356.4006845471.

Adding to 45270531 its reverse (13507254), we get a palindrome (58777785).

The spelling of 45270531 in words is "forty-five million, two hundred seventy thousand, five hundred thirty-one".