1249329 has 4 divisors (see below), whose sum is σ = 1665776. Its totient is φ = 832884.

The previous prime is 1249321. The next prime is 1249333. The reversal of 1249329 is 9239421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1249329 - 2³ = 1249321 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1249296 and 1249305.

It is not an unprimeable number, because it can be changed into a prime (1249321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208219 + ... + 208224.

It is an arithmetic number, because the mean of its divisors is an integer number (416444).

2^1249329 is an apocalyptic number.

It is an amenable number.

1249329 is a deficient number, since it is larger than the sum of its proper divisors (416447).

1249329 is an equidigital number, since it uses as much as digits as its factorization.

1249329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416446.

The product of its digits is 3888, while the sum is 30.

The square root of 1249329 is about 1117.7338681457. The cubic root of 1249329 is about 107.7024560426.

It can be divided in two parts, 124 and 9329, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 1249329 in words is "one million, two hundred forty-nine thousand, three hundred twenty-nine".