190129697 has 2 divisors, whose sum is σ = 190129698. Its totient is φ = 190129696.

The previous prime is 190129651. The next prime is 190129699. The reversal of 190129697 is 796921091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182682256 + 7447441 = 13516^2 + 2729^2 .

It is a cyclic number.

It is not a de Polignac number, because 190129697 - 2⁶ = 190129633 is a prime.

It is a super-2 number, since 2×190129697² = 72298603362623618, which contains 22 as substring.

Together with 190129699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (190129699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95064848 + 95064849.

It is an arithmetic number, because the mean of its divisors is an integer number (95064849).

Almost surely, 2^190129697 is an apocalyptic number.

It is an amenable number.

190129697 is a deficient number, since it is larger than the sum of its proper divisors (1).

190129697 is an equidigital number, since it uses as much as digits as its factorization.

190129697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 190129697 is about 13788.7525541653. The cubic root of 190129697 is about 575.0204877388.

The spelling of 190129697 in words is "one hundred ninety million, one hundred twenty-nine thousand, six hundred ninety-seven".