9455554123 has 2 divisors, whose sum is σ = 9455554124. Its totient is φ = 9455554122.

The previous prime is 9455554067. The next prime is 9455554153. The reversal of 9455554123 is 3214555549.

It is a strong prime.

It is an emirp because it is prime and its reverse (3214555549) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9455554123 - 2²⁹ = 8918683211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9455554123.

It is not a weakly prime, because it can be changed into another prime (9455554153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4727777061 + 4727777062.

It is an arithmetic number, because the mean of its divisors is an integer number (4727777062).

Almost surely, 2^9455554123 is an apocalyptic number.

9455554123 is a deficient number, since it is larger than the sum of its proper divisors (1).

9455554123 is an equidigital number, since it uses as much as digits as its factorization.

9455554123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540000, while the sum is 43.

The square root of 9455554123 is about 97239.6736059927. The cubic root of 9455554123 is about 2114.6037349438.

The spelling of 9455554123 in words is "nine billion, four hundred fifty-five million, five hundred fifty-four thousand, one hundred twenty-three".