2105402453 has 48 divisors (see below), whose sum is σ = 2763261504. Its totient is φ = 1585059840.

The previous prime is 2105402449. The next prime is 2105402491. The reversal of 2105402453 is 3542045012.

It is a happy number.

It is not a de Polignac number, because 2105402453 - 2² = 2105402449 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 (2105402443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3848726 + ... + 3849272.

It is an arithmetic number, because the mean of its divisors is an integer number (57567948).

Almost surely, 2^2105402453 is an apocalyptic number.

It is an amenable number.

2105402453 is a deficient number, since it is larger than the sum of its proper divisors (657859051).

2105402453 is a wasteful number, since it uses less digits than its factorization.

2105402453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2105402453 is about 45884.6646822225. The cubic root of 2105402453 is about 1281.6763625395.

Adding to 2105402453 its reverse (3542045012), we get a palindrome (5647447465).

The spelling of 2105402453 in words is "two billion, one hundred five million, four hundred two thousand, four hundred fifty-three".