136422187 has 16 divisors (see below), whose sum is σ = 152887680. Its totient is φ = 120657600.

The previous prime is 136422179. The next prime is 136422197. The reversal of 136422187 is 781224631.

It is a cyclic number.

It is not a de Polignac number, because 136422187 - 2³ = 136422179 is a prime.

It is a super-2 number, since 2×136422187² = 37222026211725938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136422157) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 178887 + ... + 179647.

It is an arithmetic number, because the mean of its divisors is an integer number (9555480).

Almost surely, 2^136422187 is an apocalyptic number.

136422187 is a deficient number, since it is larger than the sum of its proper divisors (16465493).

136422187 is a wasteful number, since it uses less digits than its factorization.

136422187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194.

The product of its digits is 16128, while the sum is 34.

The square root of 136422187 is about 11679.9908818458. The cubic root of 136422187 is about 514.7879065068.

The spelling of 136422187 in words is "one hundred thirty-six million, four hundred twenty-two thousand, one hundred eighty-seven".