136867534 has 4 divisors (see below), whose sum is σ = 205301304. Its totient is φ = 68433766.

The previous prime is 136867529. The next prime is 136867543. The reversal of 136867534 is 435768631.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34216882 + ... + 34216885.

It is an arithmetic number, because the mean of its divisors is an integer number (51325326).

Almost surely, 2^136867534 is an apocalyptic number.

136867534 is a deficient number, since it is larger than the sum of its proper divisors (68433770).

136867534 is an equidigital number, since it uses as much as digits as its factorization.

136867534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68433769.

The product of its digits is 362880, while the sum is 43.

The square root of 136867534 is about 11699.0398751351. The cubic root of 136867534 is about 515.3474690331.

The spelling of 136867534 in words is "one hundred thirty-six million, eight hundred sixty-seven thousand, five hundred thirty-four".