2531126949 has 8 divisors (see below), whose sum is σ = 3634438752. Its totient is φ = 1557616560.

The previous prime is 2531126929. The next prime is 2531126959. The reversal of 2531126949 is 9496211352.

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

It is not a de Polignac number, because 2531126949 - 2¹⁶ = 2531061413 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 2531126949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531126929) 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, 32450307 + ... + 32450384.

It is an arithmetic number, because the mean of its divisors is an integer number (454304844).

Almost surely, 2^2531126949 is an apocalyptic number.

It is an amenable number.

2531126949 is a deficient number, since it is larger than the sum of its proper divisors (1103311803).

2531126949 is a wasteful number, since it uses less digits than its factorization.

2531126949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64900707.

The product of its digits is 116640, while the sum is 42.

The square root of 2531126949 is about 50310.3065882131. The cubic root of 2531126949 is about 1362.8183604632.

The spelling of 2531126949 in words is "two billion, five hundred thirty-one million, one hundred twenty-six thousand, nine hundred forty-nine".