30202092139 has 2 divisors, whose sum is σ = 30202092140. Its totient is φ = 30202092138.

The previous prime is 30202092133. The next prime is 30202092161. The reversal of 30202092139 is 93129020203.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30202092139 - 2³ = 30202092131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30202092139.

It is not a weakly prime, because it can be changed into another prime (30202092131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101046069 + 15101046070.

It is an arithmetic number, because the mean of its divisors is an integer number (15101046070).

Almost surely, 2^30202092139 is an apocalyptic number.

30202092139 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202092139 is an equidigital number, since it uses as much as digits as its factorization.

30202092139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 30202092139 in words is "thirty billion, two hundred two million, ninety-two thousand, one hundred thirty-nine".