20149627 has 2 divisors, whose sum is σ = 20149628. Its totient is φ = 20149626.

The previous prime is 20149603. The next prime is 20149637. The reversal of 20149627 is 72694102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20149627 is a prime.

It is not a weakly prime, because it can be changed into another prime (20149637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10074813 + 10074814.

It is an arithmetic number, because the mean of its divisors is an integer number (10074814).

Almost surely, 2^20149627 is an apocalyptic number.

20149627 is a deficient number, since it is larger than the sum of its proper divisors (1).

20149627 is an equidigital number, since it uses as much as digits as its factorization.

20149627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20149627 is about 4488.8335901434. The cubic root of 20149627 is about 272.1169974979.

The spelling of 20149627 in words is "twenty million, one hundred forty-nine thousand, six hundred twenty-seven".