172455133 has 8 divisors (see below), whose sum is σ = 174002400. Its totient is φ = 170913360.

The previous prime is 172455131. The next prime is 172455167. The reversal of 172455133 is 331554271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172455133 - 2¹ = 172455131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 172455095 and 172455104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172455131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84066 + ... + 86092.

It is an arithmetic number, because the mean of its divisors is an integer number (21750300).

Almost surely, 2^172455133 is an apocalyptic number.

It is an amenable number.

172455133 is a deficient number, since it is larger than the sum of its proper divisors (1547267).

172455133 is a wasteful number, since it uses less digits than its factorization.

172455133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747.

The product of its digits is 12600, while the sum is 31.

The square root of 172455133 is about 13132.2173679847. The cubic root of 172455133 is about 556.6198737166.

The spelling of 172455133 in words is "one hundred seventy-two million, four hundred fifty-five thousand, one hundred thirty-three".