172950139 has 4 divisors (see below), whose sum is σ = 172988856. Its totient is φ = 172911424.

The previous prime is 172950131. The next prime is 172950221. The reversal of 172950139 is 931059271.

172950139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 172950139 - 2³ = 172950131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172950098 and 172950107.

It is not an unprimeable number, because it can be changed into a prime (172950131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11629 + ... + 21934.

It is an arithmetic number, because the mean of its divisors is an integer number (43247214).

Almost surely, 2^172950139 is an apocalyptic number.

172950139 is a deficient number, since it is larger than the sum of its proper divisors (38717).

172950139 is an equidigital number, since it uses as much as digits as its factorization.

172950139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38716.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 172950139 is about 13151.0508705578. The cubic root of 172950139 is about 557.1519289622.

The spelling of 172950139 in words is "one hundred seventy-two million, nine hundred fifty thousand, one hundred thirty-nine".