1231249 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 1182960.

The previous prime is 1231247. The next prime is 1231261. The reversal of 1231249 is 9421321.

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 1231249 - 2¹ = 1231247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231247) 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, 3804 + ... + 4114.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2^1231249 is an apocalyptic number.

It is an amenable number.

1231249 is a deficient number, since it is larger than the sum of its proper divisors (49199).

1231249 is a wasteful number, since it uses less digits than its factorization.

1231249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 432, while the sum is 22.

The square root of 1231249 is about 1109.6166004526. The cubic root of 1231249 is about 107.1803811001.

The spelling of 1231249 in words is "one million, two hundred thirty-one thousand, two hundred forty-nine".