245306172 has 24 divisors (see below), whose sum is σ = 576562896. Its totient is φ = 81171328.

The previous prime is 245306147. The next prime is 245306179. The reversal of 245306172 is 271603542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245306179) 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, 72963 + ... + 76250.

It is an arithmetic number, because the mean of its divisors is an integer number (24023454).

Almost surely, 2^245306172 is an apocalyptic number.

It is an amenable number.

245306172 is an abundant number, since it is smaller than the sum of its proper divisors (331256724).

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

245306172 is a wasteful number, since it uses less digits than its factorization.

245306172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149357 (or 149355 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 245306172 is about 15662.2530946221. The cubic root of 245306172 is about 625.9930215243.

The spelling of 245306172 in words is "two hundred forty-five million, three hundred six thousand, one hundred seventy-two".