45142732 has 6 divisors (see below), whose sum is σ = 78999788. Its totient is φ = 22571364.

The previous prime is 45142717. The next prime is 45142751. The reversal of 45142732 is 23724154.

It is a self number, because there is not a number n which added to its sum of digits gives 45142732.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5642838 + ... + 5642845.

Almost surely, 2^45142732 is an apocalyptic number.

It is an amenable number.

45142732 is a deficient number, since it is larger than the sum of its proper divisors (33857056).

45142732 is a wasteful number, since it uses less digits than its factorization.

45142732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11285687 (or 11285685 counting only the distinct ones).

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

The square root of 45142732 is about 6718.8341250547. The cubic root of 45142732 is about 356.0649946560.

Adding to 45142732 its reverse (23724154), we get a palindrome (68866886).

The spelling of 45142732 in words is "forty-five million, one hundred forty-two thousand, seven hundred thirty-two".