22657145 has 16 divisors (see below), whose sum is σ = 31238400. Its totient is φ = 15453504.

The previous prime is 22657127. The next prime is 22657147. The reversal of 22657145 is 54175622.

It is a cyclic number.

It is not a de Polignac number, because 22657145 - 2⁶ = 22657081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22657147) 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, 5339 + ... + 8591.

It is an arithmetic number, because the mean of its divisors is an integer number (1952400).

Almost surely, 2^22657145 is an apocalyptic number.

It is an amenable number.

22657145 is a deficient number, since it is larger than the sum of its proper divisors (8581255).

22657145 is a wasteful number, since it uses less digits than its factorization.

22657145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464.

The product of its digits is 16800, while the sum is 32.

The square root of 22657145 is about 4759.9522056424. The cubic root of 22657145 is about 282.9665249438.

The spelling of 22657145 in words is "twenty-two million, six hundred fifty-seven thousand, one hundred forty-five".