1299265 has 8 divisors (see below), whose sum is σ = 1700928. Its totient is φ = 944880.

The previous prime is 1299257. The next prime is 1299269. The reversal of 1299265 is 5629921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1299265 - 2³ = 1299257 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1299265.

It is not an unprimeable number, because it can be changed into a prime (1299269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11757 + ... + 11866.

It is an arithmetic number, because the mean of its divisors is an integer number (212616).

2^1299265 is an apocalyptic number.

It is an amenable number.

1299265 is a deficient number, since it is larger than the sum of its proper divisors (401663).

1299265 is a wasteful number, since it uses less digits than its factorization.

1299265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23639.

The product of its digits is 9720, while the sum is 34.

The square root of 1299265 is about 1139.8530607056. The cubic root of 1299265 is about 109.1187158703.

The spelling of 1299265 in words is "one million, two hundred ninety-nine thousand, two hundred sixty-five".