172701137 has 12 divisors (see below), whose sum is σ = 203653476. Its totient is φ = 145998720.

The previous prime is 172701131. The next prime is 172701149. The reversal of 172701137 is 731107271.

172701137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 86285521 + 86415616 = 9289^2 + 9296^2 .

It is not a de Polignac number, because 172701137 - 2⁸ = 172700881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172701131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20564 + ... + 27717.

It is an arithmetic number, because the mean of its divisors is an integer number (16971123).

Almost surely, 2^172701137 is an apocalyptic number.

It is an amenable number.

172701137 is a deficient number, since it is larger than the sum of its proper divisors (30952339).

172701137 is an equidigital number, since it uses as much as digits as its factorization.

172701137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48368 (or 48361 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 29.

The square root of 172701137 is about 13141.5804605078. The cubic root of 172701137 is about 556.8844172240.

The spelling of 172701137 in words is "one hundred seventy-two million, seven hundred one thousand, one hundred thirty-seven".