14913991 has 8 divisors (see below), whose sum is σ = 15386624. Its totient is φ = 14447160.

The previous prime is 14913989. The next prime is 14914001. The reversal of 14913991 is 19931941.

14913991 is a nontrivial binomial coefficient, being equal to C(5462, 2).

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

It is a 3-Lehmer number, since φ(14913991) divides (14913991-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 14913991 - 2¹ = 14913989 is a prime.

It is a deceptive number, since it divides R_14913990.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14913991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14913911) 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 7 ways as a sum of consecutive naturals, for example, 4096 + ... + 6826.

It is an arithmetic number, because the mean of its divisors is an integer number (1923328).

It is a Poulet number, since it divides 2^14913990-1.

Almost surely, 2^14913991 is an apocalyptic number.

14913991 is the 5461-st triangular number and also the 2731-st hexagonal number.

14913991 is the 1821-st centered nonagonal number.

14913991 is a deficient number, since it is larger than the sum of its proper divisors (472633).

14913991 is a wasteful number, since it uses less digits than its factorization.

14913991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901.

The product of its digits is 8748, while the sum is 37.

The square root of 14913991 is about 3861.8636692664. The cubic root of 14913991 is about 246.1489337636.

The spelling of 14913991 in words is "fourteen million, nine hundred thirteen thousand, nine hundred ninety-one".