2145435525 has 24 divisors (see below), whose sum is σ = 3941245760. Its totient is φ = 1144231920.

The previous prime is 2145435499. The next prime is 2145435527. The reversal of 2145435525 is 5255345412.

2145435525 is a `hidden beast` number, since 21 + 45 + 43 + 552 + 5 = 666.

It is not a de Polignac number, because 2145435525 - 2¹² = 2145431429 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2145435525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145435527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1588537 + ... + 1589886.

Almost surely, 2^2145435525 is an apocalyptic number.

2145435525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145435525 is a deficient number, since it is larger than the sum of its proper divisors (1795810235).

2145435525 is a wasteful number, since it uses less digits than its factorization.

2145435525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178442 (or 3178431 counting only the distinct ones).

The product of its digits is 120000, while the sum is 36.

The square root of 2145435525 is about 46318.8463263065. The cubic root of 2145435525 is about 1289.7488694486.

The spelling of 2145435525 in words is "two billion, one hundred forty-five million, four hundred thirty-five thousand, five hundred twenty-five".