136416287 has 4 divisors (see below), whose sum is σ = 155904336. Its totient is φ = 116928240.

The previous prime is 136416283. The next prime is 136416317. The reversal of 136416287 is 782614631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136416287 - 2² = 136416283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136416287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136416281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9744014 + ... + 9744027.

It is an arithmetic number, because the mean of its divisors is an integer number (38976084).

Almost surely, 2^136416287 is an apocalyptic number.

136416287 is a deficient number, since it is larger than the sum of its proper divisors (19488049).

136416287 is an equidigital number, since it uses as much as digits as its factorization.

136416287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488048.

The product of its digits is 48384, while the sum is 38.

The square root of 136416287 is about 11679.7383104246. The cubic root of 136416287 is about 514.7804852007.

The spelling of 136416287 in words is "one hundred thirty-six million, four hundred sixteen thousand, two hundred eighty-seven".