45211139 has 4 divisors (see below), whose sum is σ = 45250920. Its totient is φ = 45171360.

The previous prime is 45211091. The next prime is 45211171. The reversal of 45211139 is 93111254.

45211139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45211139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45211939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18134 + ... + 20475.

It is an arithmetic number, because the mean of its divisors is an integer number (11312730).

Almost surely, 2^45211139 is an apocalyptic number.

45211139 is a deficient number, since it is larger than the sum of its proper divisors (39781).

45211139 is a wasteful number, since it uses less digits than its factorization.

45211139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39780.

The product of its digits is 1080, while the sum is 26.

The square root of 45211139 is about 6723.9228877196. The cubic root of 45211139 is about 356.2447581459.

The spelling of 45211139 in words is "forty-five million, two hundred eleven thousand, one hundred thirty-nine".