9115404061 has 2 divisors, whose sum is σ = 9115404062. Its totient is φ = 9115404060.

The previous prime is 9115404041. The next prime is 9115404167. The reversal of 9115404061 is 1604045119.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6284525625 + 2830878436 = 79275^2 + 53206^2 .

It is an emirp because it is prime and its reverse (1604045119) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9115404061 - 2¹⁷ = 9115272989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9115404031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557702030 + 4557702031.

It is an arithmetic number, because the mean of its divisors is an integer number (4557702031).

Almost surely, 2^9115404061 is an apocalyptic number.

It is an amenable number.

9115404061 is a deficient number, since it is larger than the sum of its proper divisors (1).

9115404061 is an equidigital number, since it uses as much as digits as its factorization.

9115404061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 9115404061 is about 95474.6252205265. The cubic root of 9115404061 is about 2088.9368356268.

The spelling of 9115404061 in words is "nine billion, one hundred fifteen million, four hundred four thousand, sixty-one".