56946139 has 4 divisors (see below), whose sum is σ = 57059856. Its totient is φ = 56832424.

The previous prime is 56946121. The next prime is 56946179. The reversal of 56946139 is 93164965.

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

It is a cyclic number.

It is not a de Polignac number, because 56946139 - 2¹¹ = 56944091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56946095 and 56946104.

It is not an unprimeable number, because it can be changed into a prime (56946179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56104 + ... + 57109.

It is an arithmetic number, because the mean of its divisors is an integer number (14264964).

Almost surely, 2^56946139 is an apocalyptic number.

56946139 is a deficient number, since it is larger than the sum of its proper divisors (113717).

56946139 is a wasteful number, since it uses less digits than its factorization.

56946139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113716.

The product of its digits is 174960, while the sum is 43.

The square root of 56946139 is about 7546.2665603595. The cubic root of 56946139 is about 384.7288561432.

The spelling of 56946139 in words is "fifty-six million, nine hundred forty-six thousand, one hundred thirty-nine".