190342939 has 2 divisors, whose sum is σ = 190342940. Its totient is φ = 190342938.

The previous prime is 190342927. The next prime is 190342973. The reversal of 190342939 is 939243091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 190342939 - 2⁵ = 190342907 is a prime.

It is not a weakly prime, because it can be changed into another prime (190343939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95171469 + 95171470.

It is an arithmetic number, because the mean of its divisors is an integer number (95171470).

Almost surely, 2^190342939 is an apocalyptic number.

190342939 is a deficient number, since it is larger than the sum of its proper divisors (1).

190342939 is an equidigital number, since it uses as much as digits as its factorization.

190342939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 190342939 is about 13796.4828489003. The cubic root of 190342939 is about 575.2353808845.

The spelling of 190342939 in words is "one hundred ninety million, three hundred forty-two thousand, nine hundred thirty-nine".