1263146 has 4 divisors (see below), whose sum is σ = 1894722. Its totient is φ = 631572.

The previous prime is 1263133. The next prime is 1263173. The reversal of 1263146 is 6413621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 212521 = 1025^2 + 461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315785 + ... + 315788.

2^1263146 is an apocalyptic number.

1263146 is a deficient number, since it is larger than the sum of its proper divisors (631576).

1263146 is an equidigital number, since it uses as much as digits as its factorization.

1263146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631575.

The product of its digits is 864, while the sum is 23.

The square root of 1263146 is about 1123.8976821757. The cubic root of 1263146 is about 108.0980476776.

Adding to 1263146 its reverse (6413621), we get a palindrome (7676767).

The spelling of 1263146 in words is "one million, two hundred sixty-three thousand, one hundred forty-six".