2456139 has 8 divisors (see below), whose sum is σ = 3742720. Its totient is φ = 1403496.

The previous prime is 2456131. The next prime is 2456141. The reversal of 2456139 is 9316542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2456139 - 2³ = 2456131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2456131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58459 + ... + 58500.

It is an arithmetic number, because the mean of its divisors is an integer number (467840).

2^2456139 is an apocalyptic number.

2456139 is a deficient number, since it is larger than the sum of its proper divisors (1286581).

2456139 is a wasteful number, since it uses less digits than its factorization.

2456139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116969.

The product of its digits is 6480, while the sum is 30.

The square root of 2456139 is about 1567.2073889565. The cubic root of 2456139 is about 134.9224794997.

The spelling of 2456139 in words is "two million, four hundred fifty-six thousand, one hundred thirty-nine".