13890951 has 12 divisors (see below), whose sum is σ = 20340528. Its totient is φ = 9133344.

The previous prime is 13890949. The next prime is 13890959. The reversal of 13890951 is 15909831.

It is a happy number.

It is not a de Polignac number, because 13890951 - 2¹ = 13890949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13890959) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9915 + ... + 11228.

It is an arithmetic number, because the mean of its divisors is an integer number (1695044).

Almost surely, 2^13890951 is an apocalyptic number.

13890951 is a deficient number, since it is larger than the sum of its proper divisors (6449577).

13890951 is a wasteful number, since it uses less digits than its factorization.

13890951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21222 (or 21219 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 13890951 is about 3727.0566134686. The cubic root of 13890951 is about 240.3868241113.

It can be divided in two parts, 13890 and 951, that added together give a palindrome (14841).

The spelling of 13890951 in words is "thirteen million, eight hundred ninety thousand, nine hundred fifty-one".