1299135 has 16 divisors (see below), whose sum is σ = 2092896. Its totient is φ = 688128.

The previous prime is 1299101. The next prime is 1299143. The reversal of 1299135 is 5319921.

It is not a de Polignac number, because 1299135 - 2⁷ = 1299007 is a prime.

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, 3687 + ... + 4023.

It is an arithmetic number, because the mean of its divisors is an integer number (130806).

2^1299135 is an apocalyptic number.

1299135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1299135 is a deficient number, since it is larger than the sum of its proper divisors (793761).

1299135 is a wasteful number, since it uses less digits than its factorization.

1299135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602.

The product of its digits is 2430, while the sum is 30.

The square root of 1299135 is about 1139.7960343851. The cubic root of 1299135 is about 109.1150764008.

The spelling of 1299135 in words is "one million, two hundred ninety-nine thousand, one hundred thirty-five".