1298967345 has 24 divisors (see below), whose sum is σ = 2424740136. Its totient is φ = 639491328.

The previous prime is 1298967323. The next prime is 1298967361. The reversal of 1298967345 is 5437698921.

1298967345 is a `hidden beast` number, since 1 + 298 + 9 + 6 + 7 + 345 = 666.

1298967345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 1297728576 = 1113^2 + 36024^2 .

It is not a de Polignac number, because 1298967345 - 2¹⁶ = 1298901809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1298967291 and 1298967300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1109644 + ... + 1110813.

It is an arithmetic number, because the mean of its divisors is an integer number (101030839).

Almost surely, 2^1298967345 is an apocalyptic number.

1298967345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1298967345 is a deficient number, since it is larger than the sum of its proper divisors (1125772791).

1298967345 is a wasteful number, since it uses less digits than its factorization.

1298967345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220481 (or 2220478 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1298967345 is about 36041.1895613893. The cubic root of 1298967345 is about 1091.1038238640.

The spelling of 1298967345 in words is "one billion, two hundred ninety-eight million, nine hundred sixty-seven thousand, three hundred forty-five".