20132939 has 2 divisors, whose sum is σ = 20132940. Its totient is φ = 20132938.

The previous prime is 20132933. The next prime is 20132941. The reversal of 20132939 is 93923102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20132939 - 2⁴ = 20132923 is a prime.

Together with 20132941, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (20132933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066469 + 10066470.

It is an arithmetic number, because the mean of its divisors is an integer number (10066470).

Almost surely, 2^20132939 is an apocalyptic number.

20132939 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132939 is an equidigital number, since it uses as much as digits as its factorization.

20132939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 20132939 is about 4486.9743703302. The cubic root of 20132939 is about 272.0418539616.

The spelling of 20132939 in words is "twenty million, one hundred thirty-two thousand, nine hundred thirty-nine".