1248425 has 6 divisors (see below), whose sum is σ = 1548078. Its totient is φ = 998720.

The previous prime is 1248413. The next prime is 1248427. The reversal of 1248425 is 5248421.

1248425 = T₁₉₈ + T₁₉₉ + ... + T₂₄₇.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11881 + 1236544 = 109^2 + 1112^2 .

It is not a de Polignac number, because 1248425 - 2¹⁰ = 1247401 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1248394 and 1248403.

It is not an unprimeable number, because it can be changed into a prime (1248427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24944 + ... + 24993.

It is an arithmetic number, because the mean of its divisors is an integer number (258013).

2^1248425 is an apocalyptic number.

It is an amenable number.

1248425 is a deficient number, since it is larger than the sum of its proper divisors (299653).

1248425 is an equidigital number, since it uses as much as digits as its factorization.

1248425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49947 (or 49942 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1248425 is about 1117.3294053232. The cubic root of 1248425 is about 107.6764723577.

The spelling of 1248425 in words is "one million, two hundred forty-eight thousand, four hundred twenty-five".