191596297252 has 12 divisors (see below), whose sum is σ = 335310457356. Its totient is φ = 95793309440.

The previous prime is 191596297231. The next prime is 191596297267. The reversal of 191596297252 is 252792695191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 120203663616 + 71392633636 = 346704^2 + 267194^2 .

It is a super-2 number, since 2×191596297252² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1119973 + ... + 1279660.

It is an arithmetic number, because the mean of its divisors is an integer number (27942538113).

Almost surely, 2^191596297252 is an apocalyptic number.

It is an amenable number.

191596297252 is a deficient number, since it is larger than the sum of its proper divisors (143714160104).

191596297252 is a wasteful number, since it uses less digits than its factorization.

191596297252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419598 (or 2419596 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 58.

The spelling of 191596297252 in words is "one hundred ninety-one billion, five hundred ninety-six million, two hundred ninety-seven thousand, two hundred fifty-two".