2531634361 has 4 divisors (see below), whose sum is σ = 2532634000. Its totient is φ = 2530634724.

The previous prime is 2531634359. The next prime is 2531634397. The reversal of 2531634361 is 1634361352.

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 2531634361 - 2¹ = 2531634359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2531634341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496011 + ... + 501088.

It is an arithmetic number, because the mean of its divisors is an integer number (633158500).

Almost surely, 2^2531634361 is an apocalyptic number.

It is an amenable number.

2531634361 is a deficient number, since it is larger than the sum of its proper divisors (999639).

2531634361 is an equidigital number, since it uses as much as digits as its factorization.

2531634361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999638.

The product of its digits is 38880, while the sum is 34.

The square root of 2531634361 is about 50315.3491590787. The cubic root of 2531634361 is about 1362.9094219021.

The spelling of 2531634361 in words is "two billion, five hundred thirty-one million, six hundred thirty-four thousand, three hundred sixty-one".