1246001131 has 2 divisors, whose sum is σ = 1246001132. Its totient is φ = 1246001130.

The previous prime is 1246001101. The next prime is 1246001219. The reversal of 1246001131 is 1311006421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1246001131 - 2²⁵ = 1212446699 is a prime.

It is a super-2 number, since 2×1246001131² = 3105037636906558322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1246001099 and 1246001108.

It is not a weakly prime, because it can be changed into another prime (1246001101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623000565 + 623000566.

It is an arithmetic number, because the mean of its divisors is an integer number (623000566).

Almost surely, 2^1246001131 is an apocalyptic number.

1246001131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246001131 is an equidigital number, since it uses as much as digits as its factorization.

1246001131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1246001131 is about 35298.7412098505. The cubic root of 1246001131 is about 1076.0674109473.

Adding to 1246001131 its reverse (1311006421), we get a palindrome (2557007552).

The spelling of 1246001131 in words is "one billion, two hundred forty-six million, one thousand, one hundred thirty-one".