9130781261 has 8 divisors (see below), whose sum is σ = 10771797504. Its totient is φ = 7573919760.

The previous prime is 9130781251. The next prime is 9130781267. The reversal of 9130781261 is 1621870319.

9130781261 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9130781261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9130781267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21038450 + ... + 21038883.

It is an arithmetic number, because the mean of its divisors is an integer number (1346474688).

Almost surely, 2^9130781261 is an apocalyptic number.

It is an amenable number.

9130781261 is a deficient number, since it is larger than the sum of its proper divisors (1641016243).

9130781261 is a wasteful number, since it uses less digits than its factorization.

9130781261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42077371.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 9130781261 is about 95555.1215843505. The cubic root of 9130781261 is about 2090.1108173653.

The spelling of 9130781261 in words is "nine billion, one hundred thirty million, seven hundred eighty-one thousand, two hundred sixty-one".