214625639 has 2 divisors, whose sum is σ = 214625640. Its totient is φ = 214625638.

The previous prime is 214625623. The next prime is 214625651. The reversal of 214625639 is 936526412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 214625639 - 2⁴ = 214625623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214625659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107312819 + 107312820.

It is an arithmetic number, because the mean of its divisors is an integer number (107312820).

Almost surely, 2^214625639 is an apocalyptic number.

214625639 is a deficient number, since it is larger than the sum of its proper divisors (1).

214625639 is an equidigital number, since it uses as much as digits as its factorization.

214625639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 214625639 is about 14650.1071327141. The cubic root of 214625639 is about 598.7247349372.

The spelling of 214625639 in words is "two hundred fourteen million, six hundred twenty-five thousand, six hundred thirty-nine".