1263142 has 8 divisors (see below), whose sum is σ = 1910016. Its totient is φ = 626472.

The previous prime is 1263133. The next prime is 1263173. The reversal of 1263142 is 2413621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2233 + ... + 2740.

It is an arithmetic number, because the mean of its divisors is an integer number (238752).

2^1263142 is an apocalyptic number.

1263142 is a deficient number, since it is larger than the sum of its proper divisors (646874).

1263142 is a wasteful number, since it uses less digits than its factorization.

1263142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102.

The product of its digits is 288, while the sum is 19.

The square root of 1263142 is about 1123.8959026529. The cubic root of 1263142 is about 108.0979335729.

Adding to 1263142 its reverse (2413621), we get a palindrome (3676763).

The spelling of 1263142 in words is "one million, two hundred sixty-three thousand, one hundred forty-two".