2547138233 has 4 divisors (see below), whose sum is σ = 2681198160. Its totient is φ = 2413078308.

The previous prime is 2547138221. The next prime is 2547138299. The reversal of 2547138233 is 3328317452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2547138233 - 2¹² = 2547134137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2547138133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67029935 + ... + 67029972.

It is an arithmetic number, because the mean of its divisors is an integer number (670299540).

Almost surely, 2^2547138233 is an apocalyptic number.

It is an amenable number.

2547138233 is a deficient number, since it is larger than the sum of its proper divisors (134059927).

2547138233 is a wasteful number, since it uses less digits than its factorization.

2547138233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134059926.

The product of its digits is 120960, while the sum is 38.

The square root of 2547138233 is about 50469.1810216889. The cubic root of 2547138233 is about 1365.6859398667.

The spelling of 2547138233 in words is "two billion, five hundred forty-seven million, one hundred thirty-eight thousand, two hundred thirty-three".