13401287 has 8 divisors (see below), whose sum is σ = 14252832. Its totient is φ = 12556800.

The previous prime is 13401281. The next prime is 13401299. The reversal of 13401287 is 78210431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13401287 - 2¹² = 13397191 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13401281) 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, 2462 + ... + 5732.

It is an arithmetic number, because the mean of its divisors is an integer number (1781604).

Almost surely, 2^13401287 is an apocalyptic number.

13401287 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13401287 is a deficient number, since it is larger than the sum of its proper divisors (851545).

13401287 is a wasteful number, since it uses less digits than its factorization.

13401287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3529.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13401287 is about 3660.7768301277. The cubic root of 13401287 is about 237.5283777726.

The spelling of 13401287 in words is "thirteen million, four hundred one thousand, two hundred eighty-seven".