2145315143252 has 24 divisors (see below), whose sum is σ = 3796393255200. Its totient is φ = 1060668419040.

The previous prime is 2145315143233. The next prime is 2145315143263. The reversal of 2145315143252 is 2523415135412.

It is a super-2 number, since 2×2145315143252² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4401002 + ... + 4864097.

It is an arithmetic number, because the mean of its divisors is an integer number (158183052300).

Almost surely, 2^{2145315143252} is an apocalyptic number.

It is an amenable number.

2145315143252 is a deficient number, since it is larger than the sum of its proper divisors (1651078111948).

2145315143252 is a wasteful number, since it uses less digits than its factorization.

2145315143252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9265751 (or 9265749 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The spelling of 2145315143252 in words is "two trillion, one hundred forty-five billion, three hundred fifteen million, one hundred forty-three thousand, two hundred fifty-two".