190348709 has 2 divisors, whose sum is σ = 190348710. Its totient is φ = 190348708.

The previous prime is 190348703. The next prime is 190348727. The reversal of 190348709 is 907843091.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182385025 + 7963684 = 13505^2 + 2822^2 .

It is a cyclic number.

It is not a de Polignac number, because 190348709 - 2⁸ = 190348453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190348703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95174354 + 95174355.

It is an arithmetic number, because the mean of its divisors is an integer number (95174355).

Almost surely, 2^190348709 is an apocalyptic number.

It is an amenable number.

190348709 is a deficient number, since it is larger than the sum of its proper divisors (1).

190348709 is an equidigital number, since it uses as much as digits as its factorization.

190348709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 190348709 is about 13796.6919585820. The cubic root of 190348709 is about 575.2411933313.

The spelling of 190348709 in words is "one hundred ninety million, three hundred forty-eight thousand, seven hundred nine".