214996139 has 4 divisors (see below), whose sum is σ = 215108400. Its totient is φ = 214883880.

The previous prime is 214996097. The next prime is 214996151. The reversal of 214996139 is 931699412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214996139 is a prime.

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 214996139.

It is not an unprimeable number, because it can be changed into a prime (214996339) 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 3 ways as a sum of consecutive naturals, for example, 53207 + ... + 57104.

It is an arithmetic number, because the mean of its divisors is an integer number (53777100).

Almost surely, 2^214996139 is an apocalyptic number.

214996139 is a deficient number, since it is larger than the sum of its proper divisors (112261).

214996139 is a wasteful number, since it uses less digits than its factorization.

214996139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112260.

The product of its digits is 104976, while the sum is 44.

The square root of 214996139 is about 14662.7466390169. The cubic root of 214996139 is about 599.0690553913.

The spelling of 214996139 in words is "two hundred fourteen million, nine hundred ninety-six thousand, one hundred thirty-nine".