136872101 has 6 divisors (see below), whose sum is σ = 137437830. Its totient is φ = 136308648.

The previous prime is 136872097. The next prime is 136872107. The reversal of 136872101 is 101278631.

It can be written as a sum of positive squares in only one way, i.e., 98109025 + 38763076 = 9905^2 + 6226^2 .

It is not a de Polignac number, because 136872101 - 2² = 136872097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136872107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79235 + ... + 80943.

It is an arithmetic number, because the mean of its divisors is an integer number (22906305).

Almost surely, 2^136872101 is an apocalyptic number.

It is an amenable number.

136872101 is a deficient number, since it is larger than the sum of its proper divisors (565729).

136872101 is an frugal number, since it uses more digits than its factorization.

With its successor (136872102) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1992).

136872101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 1992 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 136872101 is about 11699.2350604644. The cubic root of 136872101 is about 515.3532010126.

The spelling of 136872101 in words is "one hundred thirty-six million, eight hundred seventy-two thousand, one hundred one".