1248431 has 4 divisors (see below), whose sum is σ = 1252152. Its totient is φ = 1244712.

The previous prime is 1248427. The next prime is 1248449. The reversal of 1248431 is 1348421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1248431 - 2² = 1248427 is a prime.

It is a super-2 number, since 2×1248431² = 3117159923522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1248397 and 1248406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248451) 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, 1301 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (313038).

2^1248431 is an apocalyptic number.

1248431 is a deficient number, since it is larger than the sum of its proper divisors (3721).

1248431 is an equidigital number, since it uses as much as digits as its factorization.

1248431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720.

The product of its digits is 768, while the sum is 23.

The square root of 1248431 is about 1117.3320902937. The cubic root of 1248431 is about 107.6766448571.

The spelling of 1248431 in words is "one million, two hundred forty-eight thousand, four hundred thirty-one".