119939021 has 2 divisors, whose sum is σ = 119939022. Its totient is φ = 119939020.

The previous prime is 119939011. The next prime is 119939047. The reversal of 119939021 is 120939911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92428996 + 27510025 = 9614^2 + 5245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-119939021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (119939011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59969510 + 59969511.

It is an arithmetic number, because the mean of its divisors is an integer number (59969511).

Almost surely, 2^119939021 is an apocalyptic number.

It is an amenable number.

119939021 is a deficient number, since it is larger than the sum of its proper divisors (1).

119939021 is an equidigital number, since it uses as much as digits as its factorization.

119939021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 119939021 is about 10951.6674986049. The cubic root of 119939021 is about 493.1588522957.

The spelling of 119939021 in words is "one hundred nineteen million, nine hundred thirty-nine thousand, twenty-one".