136997286 has 8 divisors (see below), whose sum is σ = 273994584. Its totient is φ = 45665760.

The previous prime is 136997279. The next prime is 136997291. The reversal of 136997286 is 682799631.

It is a sphenic number, since it is the product of 3 distinct primes.

136997286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11416435 + ... + 11416446.

It is an arithmetic number, because the mean of its divisors is an integer number (34249323).

Almost surely, 2^136997286 is an apocalyptic number.

136997286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

136997286 is a wasteful number, since it uses less digits than its factorization.

136997286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22832886.

The product of its digits is 979776, while the sum is 51.

The square root of 136997286 is about 11704.5839738113. The cubic root of 136997286 is about 515.5102693788.

The spelling of 136997286 in words is "one hundred thirty-six million, nine hundred ninety-seven thousand, two hundred eighty-six".