1299081 has 8 divisors (see below), whose sum is σ = 1979584. Its totient is φ = 742320.

The previous prime is 1299079. The next prime is 1299097. The reversal of 1299081 is 1809921.

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

It is not a de Polignac number, because 1299081 - 2¹ = 1299079 is a prime.

It is a super-2 number, since 2×1299081² = 3375222889122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1299041) 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, 30910 + ... + 30951.

It is an arithmetic number, because the mean of its divisors is an integer number (247448).

2^1299081 is an apocalyptic number.

It is an amenable number.

1299081 is a deficient number, since it is larger than the sum of its proper divisors (680503).

1299081 is an equidigital number, since it uses as much as digits as its factorization.

1299081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61871.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1299081 is about 1139.7723456901. The cubic root of 1299081 is about 109.1135645498.

The spelling of 1299081 in words is "one million, two hundred ninety-nine thousand, eighty-one".