1249291 has 8 divisors (see below), whose sum is σ = 1349280. Its totient is φ = 1153152.

The previous prime is 1249273. The next prime is 1249301. The reversal of 1249291 is 1929421.

It is a happy number.

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 1249291 - 2⁷ = 1249163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249201) 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 7 ways as a sum of consecutive naturals, for example, 270 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (168660).

2^1249291 is an apocalyptic number.

1249291 is a deficient number, since it is larger than the sum of its proper divisors (99989).

1249291 is a wasteful number, since it uses less digits than its factorization.

1249291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925.

The product of its digits is 1296, while the sum is 28.

The square root of 1249291 is about 1117.7168693368. The cubic root of 1249291 is about 107.7013640605.

It can be divided in two parts, 1249 and 291, that added together give a triangular number (1540 = T₅₅).

The spelling of 1249291 in words is "one million, two hundred forty-nine thousand, two hundred ninety-one".