2125453345 has 16 divisors (see below), whose sum is σ = 2733373440. Its totient is φ = 1582473024.

The previous prime is 2125453313. The next prime is 2125453387. The reversal of 2125453345 is 5433545212.

It is a cyclic number.

It is not a de Polignac number, because 2125453345 - 2⁵ = 2125453313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2125453345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245505 + ... + 254014.

It is an arithmetic number, because the mean of its divisors is an integer number (170835840).

Almost surely, 2^2125453345 is an apocalyptic number.

It is an amenable number.

2125453345 is a deficient number, since it is larger than the sum of its proper divisors (607920095).

2125453345 is a wasteful number, since it uses less digits than its factorization.

2125453345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499584.

The product of its digits is 72000, while the sum is 34.

The square root of 2125453345 is about 46102.6392411541. The cubic root of 2125453345 is about 1285.7322145266.

Adding to 2125453345 its reverse (5433545212), we get a palindrome (7558998557).

The spelling of 2125453345 in words is "two billion, one hundred twenty-five million, four hundred fifty-three thousand, three hundred forty-five".