136872743 has 16 divisors (see below), whose sum is σ = 160043520. Its totient is φ = 114631200.

The previous prime is 136872739. The next prime is 136872767. The reversal of 136872743 is 347278631.

It is a cyclic number.

It is not a de Polignac number, because 136872743 - 2² = 136872739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136872743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136872733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73838 + ... + 75668.

It is an arithmetic number, because the mean of its divisors is an integer number (10002720).

Almost surely, 2^136872743 is an apocalyptic number.

136872743 is a deficient number, since it is larger than the sum of its proper divisors (23170777).

136872743 is a wasteful number, since it uses less digits than its factorization.

136872743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2078.

The product of its digits is 169344, while the sum is 41.

The square root of 136872743 is about 11699.2624981235. The cubic root of 136872743 is about 515.3540067679.

The spelling of 136872743 in words is "one hundred thirty-six million, eight hundred seventy-two thousand, seven hundred forty-three".