1263131 has 8 divisors (see below), whose sum is σ = 1305600. Its totient is φ = 1221480.

The previous prime is 1263121. The next prime is 1263133. The reversal of 1263131 is 1313621.

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

It is a cyclic number.

It is not a de Polignac number, because 1263131 - 2¹⁴ = 1246747 is a prime.

It is a super-2 number, since 2×1263131² = 3190999846322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4526 + ... + 4796.

It is an arithmetic number, because the mean of its divisors is an integer number (163200).

2^1263131 is an apocalyptic number.

1263131 is a deficient number, since it is larger than the sum of its proper divisors (42469).

1263131 is an equidigital number, since it uses as much as digits as its factorization.

1263131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 108, while the sum is 17.

The square root of 1263131 is about 1123.8910089506. The cubic root of 1263131 is about 108.0976197837.

Adding to 1263131 its reverse (1313621), we get a palindrome (2576752).

The spelling of 1263131 in words is "one million, two hundred sixty-three thousand, one hundred thirty-one".