1253432017 has 4 divisors (see below), whose sum is σ = 1287308596. Its totient is φ = 1219555440.

The previous prime is 1253432009. The next prime is 1253432023. The reversal of 1253432017 is 7102343521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 432265681 + 821166336 = 20791^2 + 28656^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253432017 - 2³ = 1253432009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253432417) 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 in 3 ways as a sum of consecutive naturals, for example, 16938234 + ... + 16938307.

It is an arithmetic number, because the mean of its divisors is an integer number (321827149).

Almost surely, 2^1253432017 is an apocalyptic number.

It is an amenable number.

1253432017 is a deficient number, since it is larger than the sum of its proper divisors (33876579).

1253432017 is an equidigital number, since it uses as much as digits as its factorization.

1253432017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33876578.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 1253432017 is about 35403.8418395518. The cubic root of 1253432017 is about 1078.2023183107.

Adding to 1253432017 its reverse (7102343521), we get a palindrome (8355775538).

It can be divided in two parts, 12534 and 32017, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 1253432017 in words is "one billion, two hundred fifty-three million, four hundred thirty-two thousand, seventeen".