172981203 has 16 divisors (see below), whose sum is σ = 234988416. Its totient is φ = 113160960.

The previous prime is 172981199. The next prime is 172981219. The reversal of 172981203 is 302189271.

It is not a de Polignac number, because 172981203 - 2² = 172981199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172981243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55363 + ... + 58403.

It is an arithmetic number, because the mean of its divisors is an integer number (14686776).

Almost surely, 2^172981203 is an apocalyptic number.

172981203 is a deficient number, since it is larger than the sum of its proper divisors (62007213).

172981203 is a wasteful number, since it uses less digits than its factorization.

172981203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 172981203 is about 13152.2318638321. The cubic root of 172981203 is about 557.1852841082.

The spelling of 172981203 in words is "one hundred seventy-two million, nine hundred eighty-one thousand, two hundred three".