45890139 has 4 divisors (see below), whose sum is σ = 61186856. Its totient is φ = 30593424.

The previous prime is 45890107. The next prime is 45890147. The reversal of 45890139 is 93109854.

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

It is not a de Polignac number, because 45890139 - 2⁵ = 45890107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45890097 and 45890106.

It is not an unprimeable number, because it can be changed into a prime (45890839) 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, 7648354 + ... + 7648359.

It is an arithmetic number, because the mean of its divisors is an integer number (15296714).

Almost surely, 2^45890139 is an apocalyptic number.

45890139 is a deficient number, since it is larger than the sum of its proper divisors (15296717).

45890139 is a wasteful number, since it uses less digits than its factorization.

45890139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296716.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 45890139 is about 6774.2260812583. The cubic root of 45890139 is about 358.0193153546.

The spelling of 45890139 in words is "forty-five million, eight hundred ninety thousand, one hundred thirty-nine".