190955797 has 2 divisors, whose sum is σ = 190955798. Its totient is φ = 190955796.

The previous prime is 190955761. The next prime is 190955827. The reversal of 190955797 is 797559091.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135512881 + 55442916 = 11641^2 + 7446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190955797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190985797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95477898 + 95477899.

It is an arithmetic number, because the mean of its divisors is an integer number (95477899).

Almost surely, 2^190955797 is an apocalyptic number.

It is an amenable number.

190955797 is a deficient number, since it is larger than the sum of its proper divisors (1).

190955797 is an equidigital number, since it uses as much as digits as its factorization.

190955797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 893025, while the sum is 52.

The square root of 190955797 is about 13818.6756601347. The cubic root of 190955797 is about 575.8520921749.

The spelling of 190955797 in words is "one hundred ninety million, nine hundred fifty-five thousand, seven hundred ninety-seven".