1381173 has 16 divisors (see below), whose sum is σ = 1977216. Its totient is φ = 855360.

The previous prime is 1381153. The next prime is 1381187. The reversal of 1381173 is 3711831.

It is not a de Polignac number, because 1381173 - 2⁵ = 1381141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381103) 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, 2283 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (123576).

2^1381173 is an apocalyptic number.

It is an amenable number.

1381173 is a deficient number, since it is larger than the sum of its proper divisors (596043).

1381173 is a wasteful number, since it uses less digits than its factorization.

1381173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604.

The product of its digits is 504, while the sum is 24.

The square root of 1381173 is about 1175.2331683543. The cubic root of 1381173 is about 111.3651637467.

The spelling of 1381173 in words is "one million, three hundred eighty-one thousand, one hundred seventy-three".