1213499 has 4 divisors (see below), whose sum is σ = 1386864. Its totient is φ = 1040136.

The previous prime is 1213483. The next prime is 1213517. The reversal of 1213499 is 9943121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9943121 = 37 ⋅268733.

It is a cyclic number.

It is not a de Polignac number, because 1213499 - 2⁴ = 1213483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86672 + ... + 86685.

It is an arithmetic number, because the mean of its divisors is an integer number (346716).

2^1213499 is an apocalyptic number.

1213499 is a deficient number, since it is larger than the sum of its proper divisors (173365).

1213499 is an equidigital number, since it uses as much as digits as its factorization.

1213499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173364.

The product of its digits is 1944, while the sum is 29.

The square root of 1213499 is about 1101.5893064114. The cubic root of 1213499 is about 106.6628394894.

The spelling of 1213499 in words is "one million, two hundred thirteen thousand, four hundred ninety-nine".