136242983 has 4 divisors (see below), whose sum is σ = 136348848. Its totient is φ = 136137120.

The previous prime is 136242973. The next prime is 136243021. The reversal of 136242983 is 389242631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389242631 = 3989 ⋅97579.

It is a cyclic number.

It is not a de Polignac number, because 136242983 - 2⁶ = 136242919 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 (136242943) 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, 50978 + ... + 53583.

It is an arithmetic number, because the mean of its divisors is an integer number (34087212).

Almost surely, 2^136242983 is an apocalyptic number.

136242983 is a deficient number, since it is larger than the sum of its proper divisors (105865).

136242983 is a wasteful number, since it uses less digits than its factorization.

136242983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105864.

The product of its digits is 62208, while the sum is 38.

The square root of 136242983 is about 11672.3169508029. The cubic root of 136242983 is about 514.5623995039.

The spelling of 136242983 in words is "one hundred thirty-six million, two hundred forty-two thousand, nine hundred eighty-three".