172508142 has 32 divisors (see below), whose sum is σ = 367690752. Its totient is φ = 53830304.

The previous prime is 172508137. The next prime is 172508191. The reversal of 172508142 is 241805271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6813 + ... + 19784.

It is an arithmetic number, because the mean of its divisors is an integer number (11490336).

Almost surely, 2^172508142 is an apocalyptic number.

172508142 is an abundant number, since it is smaller than the sum of its proper divisors (195182610).

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

172508142 is a wasteful number, since it uses less digits than its factorization.

172508142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26672.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 172508142 is about 13134.2354935489. The cubic root of 172508142 is about 556.6768988681.

The spelling of 172508142 in words is "one hundred seventy-two million, five hundred eight thousand, one hundred forty-two".