193172992 has 20 divisors (see below), whose sum is σ = 385969716. Its totient is φ = 96586240.

The previous prime is 193172983. The next prime is 193172999. The reversal of 193172992 is 299271391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193172999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188134 + ... + 189157.

Almost surely, 2^193172992 is an apocalyptic number.

It is an amenable number.

193172992 is a deficient number, since it is larger than the sum of its proper divisors (192796724).

193172992 is an frugal number, since it uses more digits than its factorization.

193172992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377309 (or 377293 counting only the distinct ones).

The product of its digits is 61236, while the sum is 43.

The square root of 193172992 is about 13898.6687132257. The cubic root of 193172992 is about 578.0722681955.

The spelling of 193172992 in words is "one hundred ninety-three million, one hundred seventy-two thousand, nine hundred ninety-two".