2145125214553 has 4 divisors (see below), whose sum is σ = 2145208233600. Its totient is φ = 2145042195508.

The previous prime is 2145125214527. The next prime is 2145125214569. The reversal of 2145125214553 is 3554125215412.

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.

It is a cyclic number.

It is not a de Polignac number, because 2145125214553 - 2⁹ = 2145125214041 is a prime.

It is a super-2 number, since 2×2145125214553² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145125214053) 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, 41470753 + ... + 41522446.

It is an arithmetic number, because the mean of its divisors is an integer number (536302058400).

Almost surely, 2^{2145125214553} is an apocalyptic number.

It is an amenable number.

2145125214553 is a deficient number, since it is larger than the sum of its proper divisors (83019047).

2145125214553 is an equidigital number, since it uses as much as digits as its factorization.

2145125214553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83019046.

The product of its digits is 240000, while the sum is 40.

The spelling of 2145125214553 in words is "two trillion, one hundred forty-five billion, one hundred twenty-five million, two hundred fourteen thousand, five hundred fifty-three".