172272734 has 16 divisors (see below), whose sum is σ = 278646480. Its totient is φ = 79611840.

The previous prime is 172272707. The next prime is 172272739. The reversal of 172272734 is 437272271.

It is a junction number, because it is equal to n+sod(n) for n = 172272694 and 172272703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172272739) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53729 + ... + 56844.

It is an arithmetic number, because the mean of its divisors is an integer number (17415405).

Almost surely, 2^172272734 is an apocalyptic number.

172272734 is a deficient number, since it is larger than the sum of its proper divisors (106373746).

172272734 is a wasteful number, since it uses less digits than its factorization.

172272734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110635.

The product of its digits is 32928, while the sum is 35.

The square root of 172272734 is about 13125.2708162537. The cubic root of 172272734 is about 556.4235661876.

The spelling of 172272734 in words is "one hundred seventy-two million, two hundred seventy-two thousand, seven hundred thirty-four".