14142991 has 8 divisors (see below), whose sum is σ = 14881104. Its totient is φ = 13423680.

The previous prime is 14142979. The next prime is 14143007. The reversal of 14142991 is 19924141.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14142991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14142941) 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, 3145 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (1860138).

Almost surely, 2^14142991 is an apocalyptic number.

14142991 is a deficient number, since it is larger than the sum of its proper divisors (738113).

14142991 is an equidigital number, since it uses as much as digits as its factorization.

14142991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401.

The product of its digits is 2592, while the sum is 31.

The square root of 14142991 is about 3760.7168199693. The cubic root of 14142991 is about 241.8319929901.

The spelling of 14142991 in words is "fourteen million, one hundred forty-two thousand, nine hundred ninety-one".