1249313 has 8 divisors (see below), whose sum is σ = 1424808. Its totient is φ = 1085184.

The previous prime is 1249301. The next prime is 1249319. The reversal of 1249313 is 3139421.

It can be written as a sum of positive squares in 4 ways, for example, as 283024 + 966289 = 532^2 + 983^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1249313 - 2⁸ = 1249057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249319) 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, 2606 + ... + 3047.

It is an arithmetic number, because the mean of its divisors is an integer number (178101).

2^1249313 is an apocalyptic number.

1249313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1249313 is a deficient number, since it is larger than the sum of its proper divisors (175495).

1249313 is a wasteful number, since it uses less digits than its factorization.

1249313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683.

The product of its digits is 648, while the sum is 23.

The square root of 1249313 is about 1117.7267107840. The cubic root of 1249313 is about 107.7019962633.

It can be divided in two parts, 12493 and 13, that multiplied together give a square (162409 = 403²).

The spelling of 1249313 in words is "one million, two hundred forty-nine thousand, three hundred thirteen".