172051447 has 8 divisors (see below), whose sum is σ = 174375936. Its totient is φ = 169733112.

The previous prime is 172051423. The next prime is 172051459. The reversal of 172051447 is 744150271.

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 172051447 - 2¹¹ = 172049399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172057447) 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, 89268 + ... + 91174.

It is an arithmetic number, because the mean of its divisors is an integer number (21796992).

Almost surely, 2^172051447 is an apocalyptic number.

172051447 is a deficient number, since it is larger than the sum of its proper divisors (2324489).

172051447 is a wasteful number, since it uses less digits than its factorization.

172051447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 172051447 is about 13116.8383004442. The cubic root of 172051447 is about 556.1852192034.

The spelling of 172051447 in words is "one hundred seventy-two million, fifty-one thousand, four hundred forty-seven".