1248457 has 4 divisors (see below), whose sum is σ = 1426816. Its totient is φ = 1070100.

The previous prime is 1248451. The next prime is 1248469. The reversal of 1248457 is 7548421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7548421 = 67 ⋅112663.

It is a cyclic number.

It is not a de Polignac number, because 1248457 - 2³ = 1248449 is a prime.

It is a super-3 number, since 3×1248457³ = 5837703336030299979, which contains 333 as substring.

It is a d-powerful number, because it can be written as 1 + 2 + 4⁶ + 8 + 4¹⁰ + 5⁷ + 7⁶ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89169 + ... + 89182.

It is an arithmetic number, because the mean of its divisors is an integer number (356704).

2^1248457 is an apocalyptic number.

It is an amenable number.

1248457 is a deficient number, since it is larger than the sum of its proper divisors (178359).

1248457 is an equidigital number, since it uses as much as digits as its factorization.

1248457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178358.

The product of its digits is 8960, while the sum is 31.

The square root of 1248457 is about 1117.3437250909. The cubic root of 1248457 is about 107.6773923482.

The spelling of 1248457 in words is "one million, two hundred forty-eight thousand, four hundred fifty-seven".