2981173 has 4 divisors (see below), whose sum is σ = 3210508. Its totient is φ = 2751840.

The previous prime is 2981159. The next prime is 2981179. The reversal of 2981173 is 3711892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 887364 + 2093809 = 942^2 + 1447^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2981173 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981179) 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, 114648 + ... + 114673.

It is an arithmetic number, because the mean of its divisors is an integer number (802627).

2^2981173 is an apocalyptic number.

It is an amenable number.

2981173 is a deficient number, since it is larger than the sum of its proper divisors (229335).

2981173 is a wasteful number, since it uses less digits than its factorization.

2981173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229334.

The product of its digits is 3024, while the sum is 31.

The square root of 2981173 is about 1726.6073670641. The cubic root of 2981173 is about 143.9226211077.

The spelling of 2981173 in words is "two million, nine hundred eighty-one thousand, one hundred seventy-three".