136371009 has 4 divisors (see below), whose sum is σ = 181828016. Its totient is φ = 90914004.

The previous prime is 136370987. The next prime is 136371013. The reversal of 136371009 is 900173631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 136371009 - 2⁵ = 136370977 is a prime.

It is a super-3 number, since 3×136371009³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136371029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22728499 + ... + 22728504.

It is an arithmetic number, because the mean of its divisors is an integer number (45457004).

Almost surely, 2^136371009 is an apocalyptic number.

It is an amenable number.

136371009 is a deficient number, since it is larger than the sum of its proper divisors (45457007).

136371009 is an equidigital number, since it uses as much as digits as its factorization.

136371009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457006.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 136371009 is about 11677.7998355855. The cubic root of 136371009 is about 514.7235252131.

The spelling of 136371009 in words is "one hundred thirty-six million, three hundred seventy-one thousand, nine".