136074287 has 4 divisors (see below), whose sum is σ = 136259160. Its totient is φ = 135889416.

The previous prime is 136074251. The next prime is 136074313. The reversal of 136074287 is 782470631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782470631 = 83 ⋅9427357.

It is a cyclic number.

It is not a de Polignac number, because 136074287 - 2⁶ = 136074223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136074287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136074217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91328 + ... + 92805.

It is an arithmetic number, because the mean of its divisors is an integer number (34064790).

Almost surely, 2^136074287 is an apocalyptic number.

136074287 is a deficient number, since it is larger than the sum of its proper divisors (184873).

136074287 is an equidigital number, since it uses as much as digits as its factorization.

136074287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184872.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 136074287 is about 11665.0883837200. The cubic root of 136074287 is about 514.3499348117.

The spelling of 136074287 in words is "one hundred thirty-six million, seventy-four thousand, two hundred eighty-seven".