245815164 has 108 divisors (see below), whose sum is σ = 726719448. Its totient is φ = 69854400.

The previous prime is 245815153. The next prime is 245815187. The reversal of 245815164 is 461518542.

It is a happy number.

245815164 is a `hidden beast` number, since 24 + 581 + 51 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 583674 + ... + 584094.

Almost surely, 2^245815164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245815164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363359724).

245815164 is an abundant number, since it is smaller than the sum of its proper divisors (480904284).

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

245815164 is a wasteful number, since it uses less digits than its factorization.

245815164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 764 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 245815164 is about 15678.4936776465. The cubic root of 245815164 is about 626.4256853479.

It can be divided in two parts, 245 and 815164, that added together give a square (815409 = 903²).

The spelling of 245815164 in words is "two hundred forty-five million, eight hundred fifteen thousand, one hundred sixty-four".