2153441431 has 4 divisors (see below), whose sum is σ = 2183771664. Its totient is φ = 2123111200.

The previous prime is 2153441393. The next prime is 2153441461. The reversal of 2153441431 is 1341443512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153441431 is a prime.

It is a super-2 number, since 2×2153441431² = 9274619993494655522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153441431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153441461) 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, 15165010 + ... + 15165151.

It is an arithmetic number, because the mean of its divisors is an integer number (545942916).

Almost surely, 2^2153441431 is an apocalyptic number.

2153441431 is a deficient number, since it is larger than the sum of its proper divisors (30330233).

2153441431 is an equidigital number, since it uses as much as digits as its factorization.

2153441431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330232.

The product of its digits is 5760, while the sum is 28.

The square root of 2153441431 is about 46405.1875440667. The cubic root of 2153441431 is about 1291.3511534565.

Adding to 2153441431 its reverse (1341443512), we get a palindrome (3494884943).

The spelling of 2153441431 in words is "two billion, one hundred fifty-three million, four hundred forty-one thousand, four hundred thirty-one".