9130040261 has 4 divisors (see below), whose sum is σ = 9135384300. Its totient is φ = 9124696224.

The previous prime is 9130040221. The next prime is 9130040273. The reversal of 9130040261 is 1620400319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1620400319 = 41 ⋅39521959.

It can be written as a sum of positive squares in 2 ways, for example, as 5230037761 + 3900002500 = 72319^2 + 62450^2 .

It is a cyclic number.

It is not a de Polignac number, because 9130040261 - 2¹⁸ = 9129778117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9130040261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9130040221) 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, 2669456 + ... + 2672873.

It is an arithmetic number, because the mean of its divisors is an integer number (2283846075).

Almost surely, 2^9130040261 is an apocalyptic number.

It is an amenable number.

9130040261 is a deficient number, since it is larger than the sum of its proper divisors (5344039).

9130040261 is a wasteful number, since it uses less digits than its factorization.

9130040261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344038.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 9130040261 is about 95551.2441624912. The cubic root of 9130040261 is about 2090.0542755072.

The spelling of 9130040261 in words is "nine billion, one hundred thirty million, forty thousand, two hundred sixty-one".