14156989 has 16 divisors (see below), whose sum is σ = 17988480. Its totient is φ = 10820160.

The previous prime is 14156981. The next prime is 14156993. The reversal of 14156989 is 98965141.

It is a cyclic number.

It is not a de Polignac number, because 14156989 - 2³ = 14156981 is a prime.

It is a super-2 number, since 2×14156989² = 400840675092242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14156981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2347 + ... + 5815.

It is an arithmetic number, because the mean of its divisors is an integer number (1124280).

Almost surely, 2^14156989 is an apocalyptic number.

It is an amenable number.

14156989 is a deficient number, since it is larger than the sum of its proper divisors (3831491).

14156989 is a wasteful number, since it uses less digits than its factorization.

14156989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540.

The product of its digits is 77760, while the sum is 43.

The square root of 14156989 is about 3762.5774410635. The cubic root of 14156989 is about 241.9117509430.

The spelling of 14156989 in words is "fourteen million, one hundred fifty-six thousand, nine hundred eighty-nine".