172141394 has 8 divisors (see below), whose sum is σ = 259857228. Its totient is φ = 85522320.

The previous prime is 172141391. The next prime is 172141441. The reversal of 172141394 is 493141271.

It can be written as a sum of positive squares in 2 ways, for example, as 160149025 + 11992369 = 12655^2 + 3463^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172141394.

It is not an unprimeable number, because it can be changed into a prime (172141391) 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, 273797 + ... + 274424.

Almost surely, 2^172141394 is an apocalyptic number.

172141394 is a deficient number, since it is larger than the sum of its proper divisors (87715834).

172141394 is a wasteful number, since it uses less digits than its factorization.

172141394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548380.

The product of its digits is 6048, while the sum is 32.

The square root of 172141394 is about 13120.2665369268. The cubic root of 172141394 is about 556.2821252498.

The spelling of 172141394 in words is "one hundred seventy-two million, one hundred forty-one thousand, three hundred ninety-four".