45138711 has 4 divisors (see below), whose sum is σ = 60184952. Its totient is φ = 30092472.

The previous prime is 45138707. The next prime is 45138713. The reversal of 45138711 is 11783154.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 45138711 - 2² = 45138707 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45138713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7523116 + ... + 7523121.

It is an arithmetic number, because the mean of its divisors is an integer number (15046238).

Almost surely, 2^45138711 is an apocalyptic number.

45138711 is a deficient number, since it is larger than the sum of its proper divisors (15046241).

45138711 is a wasteful number, since it uses less digits than its factorization.

45138711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15046240.

The product of its digits is 3360, while the sum is 30.

The square root of 45138711 is about 6718.5348849284. The cubic root of 45138711 is about 356.0544224126.

The spelling of 45138711 in words is "forty-five million, one hundred thirty-eight thousand, seven hundred eleven".