1299022 has 4 divisors (see below), whose sum is σ = 1948536. Its totient is φ = 649510.

The previous prime is 1299019. The next prime is 1299029. The reversal of 1299022 is 2209921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2209921 = 7 ⋅315703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324754 + ... + 324757.

It is an arithmetic number, because the mean of its divisors is an integer number (487134).

2^1299022 is an apocalyptic number.

1299022 is a deficient number, since it is larger than the sum of its proper divisors (649514).

1299022 is an equidigital number, since it uses as much as digits as its factorization.

1299022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649513.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1299022 is about 1139.7464630347. The cubic root of 1299022 is about 109.1119126646. Note that the first 3 decimals are identical.

The spelling of 1299022 in words is "one million, two hundred ninety-nine thousand, twenty-two".