1248831 has 16 divisors (see below), whose sum is σ = 1931520. Its totient is φ = 795960.

The previous prime is 1248829. The next prime is 1248833. The reversal of 1248831 is 1388421.

It is an interprime number because it is at equal distance from previous prime (1248829) and next prime (1248833).

It is not a de Polignac number, because 1248831 - 2¹ = 1248829 is a prime.

It is a super-2 number, since 2×1248831² = 3119157733122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

1248831 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1248795 and 1248804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385 + ... + 1626.

It is an arithmetic number, because the mean of its divisors is an integer number (120720).

2^1248831 is an apocalyptic number.

1248831 is a deficient number, since it is larger than the sum of its proper divisors (682689).

1248831 is a wasteful number, since it uses less digits than its factorization.

1248831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2037 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1248831 is about 1117.5110737706. The cubic root of 1248831 is about 107.6881435726.

It can be divided in two parts, 1 and 248831, that added together give a 5-th power (248832 = 12⁵).

The spelling of 1248831 in words is "one million, two hundred forty-eight thousand, eight hundred thirty-one".