190964729 has 2 divisors, whose sum is σ = 190964730. Its totient is φ = 190964728.

The previous prime is 190964647. The next prime is 190964759. The reversal of 190964729 is 927469091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157879225 + 33085504 = 12565^2 + 5752^2 .

It is a cyclic number.

It is not a de Polignac number, because 190964729 - 2¹² = 190960633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190964759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95482364 + 95482365.

It is an arithmetic number, because the mean of its divisors is an integer number (95482365).

Almost surely, 2^190964729 is an apocalyptic number.

It is an amenable number.

190964729 is a deficient number, since it is larger than the sum of its proper divisors (1).

190964729 is an equidigital number, since it uses as much as digits as its factorization.

190964729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 190964729 is about 13818.9988421738. The cubic root of 190964729 is about 575.8610705716.

The spelling of 190964729 in words is "one hundred ninety million, nine hundred sixty-four thousand, seven hundred twenty-nine".