136986143 has 24 divisors (see below), whose sum is σ = 166786560. Its totient is φ = 110192400.

The previous prime is 136986131. The next prime is 136986151. The reversal of 136986143 is 341689631.

136986143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136986143 - 2⁴ = 136986127 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 136986143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136986103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 381398 + ... + 381756.

It is an arithmetic number, because the mean of its divisors is an integer number (6949440).

Almost surely, 2^136986143 is an apocalyptic number.

136986143 is a deficient number, since it is larger than the sum of its proper divisors (29800417).

136986143 is a wasteful number, since it uses less digits than its factorization.

136986143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 536 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 136986143 is about 11704.1079540476. The cubic root of 136986143 is about 515.4962922487.

The spelling of 136986143 in words is "one hundred thirty-six million, nine hundred eighty-six thousand, one hundred forty-three".