191394000196 has 27 divisors (see below), whose sum is σ = 389635969149. Its totient is φ = 82023375168.

The previous prime is 191394000181. The next prime is 191394000211. The reversal of 191394000196 is 691000493191.

The square root of 191394000196 is 437486.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (191394000181) and next prime (191394000211).

It can be written as a sum of positive squares in only one way, i.e., 124457961796 + 66936038400 = 352786^2 + 258720^2 .

It is a super-2 number, since 2×191394000196² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6109180 + ... + 6140428.

Almost surely, 2^191394000196 is an apocalyptic number.

191394000196 is the 437486-th square number.

It is an amenable number.

191394000196 is an abundant number, since it is smaller than the sum of its proper divisors (198241968953).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

191394000196 is an frugal number, since it uses more digits than its factorization.

191394000196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62516 (or 31258 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 191394000196 in words is "one hundred ninety-one billion, three hundred ninety-four million, one hundred ninety-six", and thus it is an aban number.