1249613 has 4 divisors (see below), whose sum is σ = 1303968. Its totient is φ = 1195260.

The previous prime is 1249603. The next prime is 1249621. The reversal of 1249613 is 3169421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3169421 = 59 ⋅53719.

It is a cyclic number.

It is not a de Polignac number, because 1249613 - 2¹⁰ = 1248589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249603) 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, 27143 + ... + 27188.

It is an arithmetic number, because the mean of its divisors is an integer number (325992).

2^1249613 is an apocalyptic number.

It is an amenable number.

1249613 is a deficient number, since it is larger than the sum of its proper divisors (54355).

1249613 is an equidigital number, since it uses as much as digits as its factorization.

1249613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54354.

The product of its digits is 1296, while the sum is 26.

The square root of 1249613 is about 1117.8609036906. The cubic root of 1249613 is about 107.7106164711.

The spelling of 1249613 in words is "one million, two hundred forty-nine thousand, six hundred thirteen".