20149214 has 4 divisors (see below), whose sum is σ = 30223824. Its totient is φ = 10074606.

The previous prime is 20149211. The next prime is 20149237. The reversal of 20149214 is 41294102.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20149214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20149211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5037302 + ... + 5037305.

It is an arithmetic number, because the mean of its divisors is an integer number (7555956).

Almost surely, 2^20149214 is an apocalyptic number.

20149214 is a deficient number, since it is larger than the sum of its proper divisors (10074610).

20149214 is a wasteful number, since it uses less digits than its factorization.

20149214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074609.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 20149214 is about 4488.7875868657. The cubic root of 20149214 is about 272.1151383222.

The spelling of 20149214 in words is "twenty million, one hundred forty-nine thousand, two hundred fourteen".