136243934 has 4 divisors (see below), whose sum is σ = 204365904. Its totient is φ = 68121966.

The previous prime is 136243931. The next prime is 136243937. The reversal of 136243934 is 439342631.

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

It is an interprime number because it is at equal distance from previous prime (136243931) and next prime (136243937).

It is a junction number, because it is equal to n+sod(n) for n = 136243894 and 136243903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136243931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34060982 + ... + 34060985.

It is an arithmetic number, because the mean of its divisors is an integer number (51091476).

Almost surely, 2^136243934 is an apocalyptic number.

136243934 is a deficient number, since it is larger than the sum of its proper divisors (68121970).

136243934 is an equidigital number, since it uses as much as digits as its factorization.

136243934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68121969.

The product of its digits is 46656, while the sum is 35.

The square root of 136243934 is about 11672.3576881451. The cubic root of 136243934 is about 514.5635967465.

The spelling of 136243934 in words is "one hundred thirty-six million, two hundred forty-three thousand, nine hundred thirty-four".