136984142 has 4 divisors (see below), whose sum is σ = 205476216. Its totient is φ = 68492070.

The previous prime is 136984109. The next prime is 136984151. The reversal of 136984142 is 241489631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241489631 = 41 ⋅5889991.

It is a junction number, because it is equal to n+sod(n) for n = 136984096 and 136984105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34246034 + ... + 34246037.

It is an arithmetic number, because the mean of its divisors is an integer number (51369054).

Almost surely, 2^136984142 is an apocalyptic number.

136984142 is a deficient number, since it is larger than the sum of its proper divisors (68492074).

136984142 is an equidigital number, since it uses as much as digits as its factorization.

136984142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68492073.

The product of its digits is 41472, while the sum is 38.

The square root of 136984142 is about 11704.0224709285. The cubic root of 136984142 is about 515.4937822306.

The spelling of 136984142 in words is "one hundred thirty-six million, nine hundred eighty-four thousand, one hundred forty-two".