45227431 has 8 divisors (see below), whose sum is σ = 46581920. Its totient is φ = 43879968.

The previous prime is 45227417. The next prime is 45227437. The reversal of 45227431 is 13472254.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45227431 is a prime.

It is a super-2 number, since 2×45227431² = 4091041029719522, 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 45227431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45227437) 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, 13150 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (5822740).

Almost surely, 2^45227431 is an apocalyptic number.

45227431 is a deficient number, since it is larger than the sum of its proper divisors (1354489).

45227431 is a wasteful number, since it uses less digits than its factorization.

45227431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513.

The product of its digits is 6720, while the sum is 28.

The square root of 45227431 is about 6725.1342737525. The cubic root of 45227431 is about 356.2875443760.

Adding to 45227431 its reverse (13472254), we get a palindrome (58699685).

The spelling of 45227431 in words is "forty-five million, two hundred twenty-seven thousand, four hundred thirty-one".