1006431253 has 8 divisors (see below), whose sum is σ = 1023434496. Its totient is φ = 989444400.

The previous prime is 1006431241. The next prime is 1006431271. The reversal of 1006431253 is 3521346001.

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

It is not a de Polignac number, because 1006431253 - 2¹⁷ = 1006300181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006431203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233508 + ... + 237778.

It is an arithmetic number, because the mean of its divisors is an integer number (127929312).

Almost surely, 2^1006431253 is an apocalyptic number.

It is an amenable number.

1006431253 is a deficient number, since it is larger than the sum of its proper divisors (17003243).

1006431253 is an equidigital number, since it uses as much as digits as its factorization.

1006431253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8195.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1006431253 is about 31724.3006699911. The cubic root of 1006431253 is about 1002.1391716815.

Adding to 1006431253 its reverse (3521346001), we get a palindrome (4527777254).

The spelling of 1006431253 in words is "one billion, six million, four hundred thirty-one thousand, two hundred fifty-three".