136786351 has 4 divisors (see below), whose sum is σ = 147308392. Its totient is φ = 126264312.

The previous prime is 136786343. The next prime is 136786361. The reversal of 136786351 is 153687631.

It is a happy number.

136786351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153687631 = 107 ⋅1436333.

It is a cyclic number.

It is not a de Polignac number, because 136786351 - 2³ = 136786343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136786361) 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, 5261001 + ... + 5261026.

It is an arithmetic number, because the mean of its divisors is an integer number (36827098).

Almost surely, 2^136786351 is an apocalyptic number.

136786351 is a deficient number, since it is larger than the sum of its proper divisors (10522041).

136786351 is a wasteful number, since it uses less digits than its factorization.

136786351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522040.

The product of its digits is 90720, while the sum is 40.

The square root of 136786351 is about 11695.5697167774. The cubic root of 136786351 is about 515.2455560689.

The spelling of 136786351 in words is "one hundred thirty-six million, seven hundred eighty-six thousand, three hundred fifty-one".