9136653961 has 4 divisors (see below), whose sum is σ = 9674104212. Its totient is φ = 8599203712.

The previous prime is 9136653959. The next prime is 9136653983. The reversal of 9136653961 is 1693566319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1693566319 = 2539 ⋅667021.

It can be written as a sum of positive squares in 2 ways, for example, as 7910323600 + 1226330361 = 88940^2 + 35019^2 .

It is a cyclic number.

It is not a de Polignac number, because 9136653961 - 2¹ = 9136653959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9136653661) 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, 268725100 + ... + 268725133.

It is an arithmetic number, because the mean of its divisors is an integer number (2418526053).

Almost surely, 2^9136653961 is an apocalyptic number.

It is an amenable number.

9136653961 is a deficient number, since it is larger than the sum of its proper divisors (537450251).

9136653961 is a wasteful number, since it uses less digits than its factorization.

9136653961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537450250.

The product of its digits is 787320, while the sum is 49.

The square root of 9136653961 is about 95585.8460285831. The cubic root of 9136653961 is about 2090.5588244164.

The spelling of 9136653961 in words is "nine billion, one hundred thirty-six million, six hundred fifty-three thousand, nine hundred sixty-one".