1242463 has 4 divisors (see below), whose sum is σ = 1246168. Its totient is φ = 1238760.

The previous prime is 1242457. The next prime is 1242487. The reversal of 1242463 is 3642421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3642421 = 463 ⋅7867.

It is a cyclic number.

It is not a de Polignac number, because 1242463 - 2⁹ = 1241951 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242403) 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, 1293 + ... + 2038.

It is an arithmetic number, because the mean of its divisors is an integer number (311542).

2^1242463 is an apocalyptic number.

1242463 is a deficient number, since it is larger than the sum of its proper divisors (3705).

1242463 is an equidigital number, since it uses as much as digits as its factorization.

1242463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704.

The product of its digits is 1152, while the sum is 22.

The square root of 1242463 is about 1114.6582435886. The cubic root of 1242463 is about 107.5047915658.

Adding to 1242463 its reverse (3642421), we get a palindrome (4884884).

The spelling of 1242463 in words is "one million, two hundred forty-two thousand, four hundred sixty-three".