191382241236225 has 48 divisors (see below), whose sum is σ = 340910730316800. Its totient is φ = 94176867640320.

The previous prime is 191382241236223. The next prime is 191382241236283. The reversal of 191382241236225 is 522632142283191.

It is a happy number.

It is not a de Polignac number, because 191382241236225 - 2¹ = 191382241236223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (191382241236223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41651160 + ... + 46017209.

It is an arithmetic number, because the mean of its divisors is an integer number (7102306881600).

Almost surely, 2^{191382241236225} is an apocalyptic number.

191382241236225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191382241236225 is a deficient number, since it is larger than the sum of its proper divisors (149528489080575).

191382241236225 is a wasteful number, since it uses less digits than its factorization.

191382241236225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87670634 (or 87670629 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The spelling of 191382241236225 in words is "one hundred ninety-one trillion, three hundred eighty-two billion, two hundred forty-one million, two hundred thirty-six thousand, two hundred twenty-five".