2981231453 has 4 divisors (see below), whose sum is σ = 3018968640. Its totient is φ = 2943494268.

The previous prime is 2981231447. The next prime is 2981231489. The reversal of 2981231453 is 3541321892.

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 2981231453 - 2⁶ = 2981231389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981231353) 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, 18868475 + ... + 18868632.

It is an arithmetic number, because the mean of its divisors is an integer number (754742160).

Almost surely, 2^2981231453 is an apocalyptic number.

It is an amenable number.

2981231453 is a deficient number, since it is larger than the sum of its proper divisors (37737187).

2981231453 is an equidigital number, since it uses as much as digits as its factorization.

2981231453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737186.

The product of its digits is 51840, while the sum is 38.

The square root of 2981231453 is about 54600.6543275811. The cubic root of 2981231453 is about 1439.2356175017.

The spelling of 2981231453 in words is "two billion, nine hundred eighty-one million, two hundred thirty-one thousand, four hundred fifty-three".