172470051 has 12 divisors (see below), whose sum is σ = 268286928. Its totient is φ = 106135344.

The previous prime is 172470041. The next prime is 172470059. The reversal of 172470051 is 150074271.

It is not a de Polignac number, because 172470051 - 2¹³ = 172461859 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 172469997 and 172470024.

It is not an unprimeable number, because it can be changed into a prime (172470059) 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, 736935 + ... + 737168.

It is an arithmetic number, because the mean of its divisors is an integer number (22357244).

Almost surely, 2^172470051 is an apocalyptic number.

172470051 is a deficient number, since it is larger than the sum of its proper divisors (95816877).

172470051 is a wasteful number, since it uses less digits than its factorization.

172470051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474122 (or 1474119 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 172470051 is about 13132.7853481278. The cubic root of 172470051 is about 556.6359231391.

The spelling of 172470051 in words is "one hundred seventy-two million, four hundred seventy thousand, fifty-one".