136656142 has 16 divisors (see below), whose sum is σ = 235461600. Its totient is φ = 58268448.

The previous prime is 136656139. The next prime is 136656173. The reversal of 136656142 is 241656631.

It is a super-2 number, since 2×136656142² = 37349802292648328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136656098 and 136656107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22017 + ... + 27532.

It is an arithmetic number, because the mean of its divisors is an integer number (14716350).

Almost surely, 2^136656142 is an apocalyptic number.

136656142 is a deficient number, since it is larger than the sum of its proper divisors (98805458).

136656142 is a wasteful number, since it uses less digits than its factorization.

136656142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49755.

The product of its digits is 25920, while the sum is 34.

The square root of 136656142 is about 11690.0017964070. The cubic root of 136656142 is about 515.0820141481.

The spelling of 136656142 in words is "one hundred thirty-six million, six hundred fifty-six thousand, one hundred forty-two".