2145525 has 12 divisors (see below), whose sum is σ = 3547392. Its totient is φ = 1144240.

The previous prime is 2145497. The next prime is 2145529. The reversal of 2145525 is 5255412.

It is a happy number.

It is not a de Polignac number, because 2145525 - 2¹⁰ = 2144501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145495 and 2145504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14229 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (295616).

2^2145525 is an apocalyptic number.

2145525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2145525 is a deficient number, since it is larger than the sum of its proper divisors (1401867).

2145525 is a wasteful number, since it uses less digits than its factorization.

2145525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28620 (or 28615 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 2145525 is about 1464.7610726668. The cubic root of 2145525 is about 128.9766798780.

The spelling of 2145525 in words is "two million, one hundred forty-five thousand, five hundred twenty-five".