1268555045 has 16 divisors (see below), whose sum is σ = 1696645440. Its totient is φ = 904875264.

The previous prime is 1268555023. The next prime is 1268555059. The reversal of 1268555045 is 5405558621.

It is a cyclic number.

It is not a de Polignac number, because 1268555045 - 2⁶ = 1268554981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1268554993 and 1268555011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391127 + ... + 394356.

It is an arithmetic number, because the mean of its divisors is an integer number (106040340).

Almost surely, 2^1268555045 is an apocalyptic number.

It is an amenable number.

1268555045 is a deficient number, since it is larger than the sum of its proper divisors (428090395).

1268555045 is a wasteful number, since it uses less digits than its factorization.

1268555045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785524.

The product of its (nonzero) digits is 240000, while the sum is 41.

The square root of 1268555045 is about 35616.7803850938. The cubic root of 1268555045 is about 1082.5212714077.

The spelling of 1268555045 in words is "one billion, two hundred sixty-eight million, five hundred fifty-five thousand, forty-five".