172242764 has 6 divisors (see below), whose sum is σ = 301424844. Its totient is φ = 86121380.

The previous prime is 172242761. The next prime is 172242767. The reversal of 172242764 is 467242271.

172242764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (172242761) and next prime (172242767).

It is not an unprimeable number, because it can be changed into a prime (172242761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21530342 + ... + 21530349.

It is an arithmetic number, because the mean of its divisors is an integer number (50237474).

Almost surely, 2^172242764 is an apocalyptic number.

It is an amenable number.

172242764 is a deficient number, since it is larger than the sum of its proper divisors (129182080).

172242764 is a wasteful number, since it uses less digits than its factorization.

172242764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43060695 (or 43060693 counting only the distinct ones).

The product of its digits is 37632, while the sum is 35.

The square root of 172242764 is about 13124.1290758663. The cubic root of 172242764 is about 556.3912976233.

The spelling of 172242764 in words is "one hundred seventy-two million, two hundred forty-two thousand, seven hundred sixty-four".