1249445 has 8 divisors (see below), whose sum is σ = 1506336. Its totient is φ = 994896.

The previous prime is 1249433. The next prime is 1249477. The reversal of 1249445 is 5449421.

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 1249445 - 2²⁰ = 200869 is a prime.

It is a super-2 number, since 2×1249445² = 3122225616050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (188292).

2^1249445 is an apocalyptic number.

It is an amenable number.

1249445 is a deficient number, since it is larger than the sum of its proper divisors (256891).

1249445 is an equidigital number, since it uses as much as digits as its factorization.

1249445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171.

The product of its digits is 5760, while the sum is 29.

The square root of 1249445 is about 1117.7857576477. The cubic root of 1249445 is about 107.7057893248.

The spelling of 1249445 in words is "one million, two hundred forty-nine thousand, four hundred forty-five".