2125453201 has 4 divisors (see below), whose sum is σ = 2125569600. Its totient is φ = 2125336804.

The previous prime is 2125453193. The next prime is 2125453247. The reversal of 2125453201 is 1023545212.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2125453201 - 2³ = 2125453193 is a prime.

It is a super-2 number, since 2×2125453201² = 9035102619282292802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2125453801) 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, 24181 + ... + 69538.

It is an arithmetic number, because the mean of its divisors is an integer number (531392400).

Almost surely, 2^2125453201 is an apocalyptic number.

It is an amenable number.

2125453201 is a deficient number, since it is larger than the sum of its proper divisors (116399).

2125453201 is an equidigital number, since it uses as much as digits as its factorization.

2125453201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116398.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2125453201 is about 46102.6376794213. The cubic root of 2125453201 is about 1285.7321854904.

Adding to 2125453201 its reverse (1023545212), we get a palindrome (3148998413).

The spelling of 2125453201 in words is "two billion, one hundred twenty-five million, four hundred fifty-three thousand, two hundred one".