172741312 has 28 divisors (see below), whose sum is σ = 360827320. Its totient is φ = 81824256.

The previous prime is 172741297. The next prime is 172741319. The reversal of 172741312 is 213147271.

It is a super-3 number, since 3×172741312³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172741319) 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, 69813 + ... + 72244.

It is an arithmetic number, because the mean of its divisors is an integer number (12886690).

Almost surely, 2^172741312 is an apocalyptic number.

It is an amenable number.

172741312 is an abundant number, since it is smaller than the sum of its proper divisors (188086008).

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

172741312 is a wasteful number, since it uses less digits than its factorization.

172741312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142088 (or 142078 counting only the distinct ones).

The product of its digits is 2352, while the sum is 28.

The square root of 172741312 is about 13143.1089168431. The cubic root of 172741312 is about 556.9275960497.

Adding to 172741312 its reverse (213147271), we get a palindrome (385888583).

The spelling of 172741312 in words is "one hundred seventy-two million, seven hundred forty-one thousand, three hundred twelve".