9105499987 has 2 divisors, whose sum is σ = 9105499988. Its totient is φ = 9105499986.

The previous prime is 9105499937. The next prime is 9105500029. The reversal of 9105499987 is 7899945019.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9105499987 - 2⁷ = 9105499859 is a prime.

It is not a weakly prime, because it can be changed into another prime (9105499937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4552749993 + 4552749994.

It is an arithmetic number, because the mean of its divisors is an integer number (4552749994).

Almost surely, 2^9105499987 is an apocalyptic number.

9105499987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9105499987 is an equidigital number, since it uses as much as digits as its factorization.

9105499987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7348320, while the sum is 61.

The square root of 9105499987 is about 95422.7435520484. The cubic root of 9105499987 is about 2088.1800038436.

The spelling of 9105499987 in words is "nine billion, one hundred five million, four hundred ninety-nine thousand, nine hundred eighty-seven".