2545769139 has 8 divisors (see below), whose sum is σ = 3397312512. Its totient is φ = 1695702600.

The previous prime is 2545769137. The next prime is 2545769141. The reversal of 2545769139 is 9319675452.

It is an interprime number because it is at equal distance from previous prime (2545769137) and next prime (2545769141).

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

It is not a de Polignac number, because 2545769139 - 2¹ = 2545769137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545769091 and 2545769100.

It is not an unprimeable number, because it can be changed into a prime (2545769137) 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, 365179 + ... + 372084.

It is an arithmetic number, because the mean of its divisors is an integer number (424664064).

Almost surely, 2^2545769139 is an apocalyptic number.

2545769139 is a deficient number, since it is larger than the sum of its proper divisors (851543373).

2545769139 is a wasteful number, since it uses less digits than its factorization.

2545769139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738417.

The product of its digits is 2041200, while the sum is 51.

The square root of 2545769139 is about 50455.6155348441. The cubic root of 2545769139 is about 1365.4412093294.

The spelling of 2545769139 in words is "two billion, five hundred forty-five million, seven hundred sixty-nine thousand, one hundred thirty-nine".