2145252023 has 4 divisors (see below), whose sum is σ = 2145360000. Its totient is φ = 2145144048.

The previous prime is 2145252013. The next prime is 2145252089. The reversal of 2145252023 is 3202525412.

It is a semiprime because it is the product of two primes, 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 2145252023 - 2⁶ = 2145251959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2145251983 and 2145252001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145252013) 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, 14615 + ... + 67112.

It is an arithmetic number, because the mean of its divisors is an integer number (536340000).

Almost surely, 2^2145252023 is an apocalyptic number.

2145252023 is a deficient number, since it is larger than the sum of its proper divisors (107977).

2145252023 is an equidigital number, since it uses as much as digits as its factorization.

2145252023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107976.

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

The square root of 2145252023 is about 46316.8654271854. The cubic root of 2145252023 is about 1289.7120970789.

Adding to 2145252023 its reverse (3202525412), we get a palindrome (5347777435).

The spelling of 2145252023 in words is "two billion, one hundred forty-five million, two hundred fifty-two thousand, twenty-three".