2544752139 has 8 divisors (see below), whose sum is σ = 3407566032. Its totient is φ = 1689219840.

The previous prime is 2544752129. The next prime is 2544752141. The reversal of 2544752139 is 9312574452.

It is a happy number.

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

It is not a de Polignac number, because 2544752139 - 2⁵ = 2544752107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2544752139.

It is not an unprimeable number, because it can be changed into a prime (2544752129) 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, 1819582 + ... + 1820979.

It is an arithmetic number, because the mean of its divisors is an integer number (425945754).

Almost surely, 2^2544752139 is an apocalyptic number.

2544752139 is a deficient number, since it is larger than the sum of its proper divisors (862813893).

2544752139 is a wasteful number, since it uses less digits than its factorization.

2544752139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640797.

The product of its digits is 302400, while the sum is 42.

The square root of 2544752139 is about 50445.5363634881. The cubic root of 2544752139 is about 1365.2593600740.

The spelling of 2544752139 in words is "two billion, five hundred forty-four million, seven hundred fifty-two thousand, one hundred thirty-nine".