13171420 has 24 divisors (see below), whose sum is σ = 27808704. Its totient is φ = 5240256.

The previous prime is 13171399. The next prime is 13171429. The reversal of 13171420 is 2417131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13171429) 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, 2269 + ... + 5611.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 2^13171420 is an apocalyptic number.

13171420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13171420 is an abundant number, since it is smaller than the sum of its proper divisors (14637284).

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

13171420 is a wasteful number, since it uses less digits than its factorization.

13171420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3549 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 13171420 is about 3629.2451005684. The cubic root of 13171420 is about 236.1624611524.

Adding to 13171420 its reverse (2417131), we get a palindrome (15588551).

It can be divided in two parts, 1 and 3171420, that added together give a triangular number (3171421 = T₂₅₁₈).

The spelling of 13171420 in words is "thirteen million, one hundred seventy-one thousand, four hundred twenty".