202042039 has 2 divisors, whose sum is σ = 202042040. Its totient is φ = 202042038.

The previous prime is 202041949. The next prime is 202042103. The reversal of 202042039 is 930240202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202042039 - 2⁹ = 202041527 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 (202042339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101021019 + 101021020.

It is an arithmetic number, because the mean of its divisors is an integer number (101021020).

Almost surely, 2^202042039 is an apocalyptic number.

202042039 is a deficient number, since it is larger than the sum of its proper divisors (1).

202042039 is an equidigital number, since it uses as much as digits as its factorization.

202042039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 202042039 is about 14214.1492534728. The cubic root of 202042039 is about 586.7871313761.

The spelling of 202042039 in words is "two hundred two million, forty-two thousand, thirty-nine".