1251241 has 4 divisors (see below), whose sum is σ = 1257984. Its totient is φ = 1244500.

The previous prime is 1251227. The next prime is 1251247. The reversal of 1251241 is 1421521.

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.

It is a cyclic number.

It is not a de Polignac number, because 1251241 - 2¹⁵ = 1218473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085 + ... + 3466.

It is an arithmetic number, because the mean of its divisors is an integer number (314496).

2^1251241 is an apocalyptic number.

It is an amenable number.

1251241 is a deficient number, since it is larger than the sum of its proper divisors (6743).

1251241 is an equidigital number, since it uses as much as digits as its factorization.

1251241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742.

The product of its digits is 80, while the sum is 16.

The square root of 1251241 is about 1118.5888431412. The cubic root of 1251241 is about 107.7573714234.

Adding to 1251241 its reverse (1421521), we get a palindrome (2672762).

The spelling of 1251241 in words is "one million, two hundred fifty-one thousand, two hundred forty-one".