16525145 has 16 divisors (see below), whose sum is σ = 24407040. Its totient is φ = 10459584.

The previous prime is 16525097. The next prime is 16525147. The reversal of 16525145 is 54152561.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16525145 - 2²⁰ = 15476569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16525147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17705 + ... + 18614.

It is an arithmetic number, because the mean of its divisors is an integer number (1525440).

Almost surely, 2^16525145 is an apocalyptic number.

It is an amenable number.

16525145 is a deficient number, since it is larger than the sum of its proper divisors (7881895).

16525145 is a wasteful number, since it uses less digits than its factorization.

16525145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36344.

The product of its digits is 6000, while the sum is 29.

The square root of 16525145 is about 4065.1131595566. The cubic root of 16525145 is about 254.7114254438.

The spelling of 16525145 in words is "sixteen million, five hundred twenty-five thousand, one hundred forty-five".