2145252535131 has 32 divisors (see below), whose sum is σ = 2931146906688. Its totient is φ = 1395079096320.

The previous prime is 2145252535123. The next prime is 2145252535147. The reversal of 2145252535131 is 1315352525412.

It is not a de Polignac number, because 2145252535131 - 2³ = 2145252535123 is a prime.

It is a super-2 number, since 2×2145252535131² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2145252535131.

It is not an unprimeable number, because it can be changed into a prime (2145252535031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162796215 + ... + 162809391.

It is an arithmetic number, because the mean of its divisors is an integer number (91598340834).

Almost surely, 2^{2145252535131} is an apocalyptic number.

2145252535131 is a deficient number, since it is larger than the sum of its proper divisors (785894371557).

2145252535131 is a wasteful number, since it uses less digits than its factorization.

2145252535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19071.

The product of its digits is 180000, while the sum is 39.

The spelling of 2145252535131 in words is "two trillion, one hundred forty-five billion, two hundred fifty-two million, five hundred thirty-five thousand, one hundred thirty-one".