13173140 has 24 divisors (see below), whose sum is σ = 28557312. Its totient is φ = 5099040.

The previous prime is 13173131. The next prime is 13173143. The reversal of 13173140 is 4137131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13173143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10004 + ... + 11243.

It is an arithmetic number, because the mean of its divisors is an integer number (1189888).

Almost surely, 2^13173140 is an apocalyptic number.

13173140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13173140 is an abundant number, since it is smaller than the sum of its proper divisors (15384172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13173140 is a wasteful number, since it uses less digits than its factorization.

13173140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21287 (or 21285 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 13173140 is about 3629.4820567128. The cubic root of 13173140 is about 236.1727405237.

The spelling of 13173140 in words is "thirteen million, one hundred seventy-three thousand, one hundred forty".