2531154013 has 2 divisors, whose sum is σ = 2531154014. Its totient is φ = 2531154012.

The previous prime is 2531154011. The next prime is 2531154023. The reversal of 2531154013 is 3104511352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2059525924 + 471628089 = 45382^2 + 21717^2 .

It is a cyclic number.

It is not a de Polignac number, because 2531154013 - 2¹ = 2531154011 is a prime.

Together with 2531154011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2531154011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265577006 + 1265577007.

It is an arithmetic number, because the mean of its divisors is an integer number (1265577007).

Almost surely, 2^2531154013 is an apocalyptic number.

It is an amenable number.

2531154013 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531154013 is an equidigital number, since it uses as much as digits as its factorization.

2531154013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2531154013 is about 50310.5755582263. The cubic root of 2531154013 is about 1362.8232177442.

Adding to 2531154013 its reverse (3104511352), we get a palindrome (5635665365).

The spelling of 2531154013 in words is "two billion, five hundred thirty-one million, one hundred fifty-four thousand, thirteen".