136034391 has 8 divisors (see below), whose sum is σ = 192048624. Its totient is φ = 85354880.

The previous prime is 136034387. The next prime is 136034477. The reversal of 136034391 is 193430631.

136034391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 136034391 - 2² = 136034387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136034341) 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, 1333620 + ... + 1333721.

It is an arithmetic number, because the mean of its divisors is an integer number (24006078).

Almost surely, 2^136034391 is an apocalyptic number.

136034391 is a deficient number, since it is larger than the sum of its proper divisors (56014233).

136034391 is a wasteful number, since it uses less digits than its factorization.

136034391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667361.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 136034391 is about 11663.3781984466. The cubic root of 136034391 is about 514.2996620005.

The spelling of 136034391 in words is "one hundred thirty-six million, thirty-four thousand, three hundred ninety-one".