136871001 has 6 divisors (see below), whose sum is σ = 197702570. Its totient is φ = 91247328.

The previous prime is 136870991. The next prime is 136871011. The reversal of 136871001 is 100178631.

It is an interprime number because it is at equal distance from previous prime (136870991) and next prime (136871011).

It can be written as a sum of positive squares in only one way, i.e., 136539225 + 331776 = 11685^2 + 576^2 .

It is not a de Polignac number, because 136871001 - 2¹⁷ = 136739929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136871011) 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, 7603936 + ... + 7603953.

Almost surely, 2^136871001 is an apocalyptic number.

It is an amenable number.

136871001 is a deficient number, since it is larger than the sum of its proper divisors (60831569).

136871001 is a wasteful number, since it uses less digits than its factorization.

136871001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207895 (or 15207892 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 136871001 is about 11699.1880487494. The cubic root of 136871001 is about 515.3518204292.

The spelling of 136871001 in words is "one hundred thirty-six million, eight hundred seventy-one thousand, one".