191352136 has 32 divisors (see below), whose sum is σ = 384183000. Its totient is φ = 89030656.

The previous prime is 191352131. The next prime is 191352137. The reversal of 191352136 is 631253191.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110460100 + 80892036 = 10510^2 + 8994^2 .

It is a junction number, because it is equal to n+sod(n) for n = 191352098 and 191352107.

It is not an unprimeable number, because it can be changed into a prime (191352131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4200 + ... + 20008.

Almost surely, 2^191352136 is an apocalyptic number.

It is an amenable number.

191352136 is an abundant number, since it is smaller than the sum of its proper divisors (192830864).

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

191352136 is a wasteful number, since it uses less digits than its factorization.

191352136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15921 (or 15917 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 191352136 is about 13833.0089279231. The cubic root of 191352136 is about 576.2502208252.

The spelling of 191352136 in words is "one hundred ninety-one million, three hundred fifty-two thousand, one hundred thirty-six".