13143690 has 96 divisors (see below), whose sum is σ = 40375296. Its totient is φ = 2903040.

The previous prime is 13143673. The next prime is 13143707. The reversal of 13143690 is 9634131.

It is an interprime number because it is at equal distance from previous prime (13143673) and next prime (13143707).

It is a super-2 number, since 2×13143690² = 345513173632200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19194 + ... + 19866.

It is an arithmetic number, because the mean of its divisors is an integer number (420576).

Almost surely, 2^13143690 is an apocalyptic number.

13143690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13143690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20187648).

13143690 is an abundant number, since it is smaller than the sum of its proper divisors (27231606).

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

13143690 is a wasteful number, since it uses less digits than its factorization.

13143690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13143690 is about 3625.4227339719. The cubic root of 13143690 is about 235.9966125148.

The spelling of 13143690 in words is "thirteen million, one hundred forty-three thousand, six hundred ninety".