13870351 has 16 divisors (see below), whose sum is σ = 16180128. Its totient is φ = 11848320.

The previous prime is 13870343. The next prime is 13870387. The reversal of 13870351 is 15307831.

It is not a de Polignac number, because 13870351 - 2³ = 13870343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13870391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22321 + ... + 22933.

It is an arithmetic number, because the mean of its divisors is an integer number (1011258).

Almost surely, 2^13870351 is an apocalyptic number.

13870351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13870351 is a deficient number, since it is larger than the sum of its proper divisors (2309777).

13870351 is an equidigital number, since it uses as much as digits as its factorization.

13870351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13870351 is about 3724.2920132557. The cubic root of 13870351 is about 240.2679357193.

The spelling of 13870351 in words is "thirteen million, eight hundred seventy thousand, three hundred fifty-one".