23145270 has 16 divisors (see below), whose sum is σ = 55548720. Its totient is φ = 6172064.

The previous prime is 23145209. The next prime is 23145271. The reversal of 23145270 is 7254132.

It is a self number, because there is not a number n which added to its sum of digits gives 23145270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385725 + ... + 385784.

It is an arithmetic number, because the mean of its divisors is an integer number (3471795).

Almost surely, 2^23145270 is an apocalyptic number.

23145270 is an abundant number, since it is smaller than the sum of its proper divisors (32403450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23145270 is a wasteful number, since it uses less digits than its factorization.

23145270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771519.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23145270 is about 4810.9531280194. The cubic root of 23145270 is about 284.9841788694.

The spelling of 23145270 in words is "twenty-three million, one hundred forty-five thousand, two hundred seventy".