1268825145 has 32 divisors (see below), whose sum is σ = 2335737600. Its totient is φ = 576134400.

The previous prime is 1268825143. The next prime is 1268825171. The reversal of 1268825145 is 5415288621.

It is not a de Polignac number, because 1268825145 - 2¹ = 1268825143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1268825097 and 1268825106.

It is not an unprimeable number, because it can be changed into a prime (1268825143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24906 + ... + 56195.

It is an arithmetic number, because the mean of its divisors is an integer number (72991800).

Almost surely, 2^1268825145 is an apocalyptic number.

1268825145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1268825145 is a deficient number, since it is larger than the sum of its proper divisors (1066912455).

1268825145 is a wasteful number, since it uses less digits than its factorization.

1268825145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81265.

The product of its digits is 153600, while the sum is 42.

The square root of 1268825145 is about 35620.5719353297. The cubic root of 1268825145 is about 1082.5980958880.

The spelling of 1268825145 in words is "one billion, two hundred sixty-eight million, eight hundred twenty-five thousand, one hundred forty-five".