1260982145 has 4 divisors (see below), whose sum is σ = 1513178580. Its totient is φ = 1008785712.

The previous prime is 1260982141. The next prime is 1260982187. The reversal of 1260982145 is 5412890621.

1260982145 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 374848321 + 886133824 = 19361^2 + 29768^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260982145 - 2² = 1260982141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1260982099 and 1260982108.

It is not an unprimeable number, because it can be changed into a prime (1260982141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126098210 + ... + 126098219.

It is an arithmetic number, because the mean of its divisors is an integer number (378294645).

Almost surely, 2^1260982145 is an apocalyptic number.

It is an amenable number.

1260982145 is a deficient number, since it is larger than the sum of its proper divisors (252196435).

1260982145 is an equidigital number, since it uses as much as digits as its factorization.

1260982145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252196434.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1260982145 is about 35510.3104041629. The cubic root of 1260982145 is about 1080.3628596110.

The spelling of 1260982145 in words is "one billion, two hundred sixty million, nine hundred eighty-two thousand, one hundred forty-five".