1252304231 has 4 divisors (see below), whose sum is σ = 1318215000. Its totient is φ = 1186393464.

The previous prime is 1252304213. The next prime is 1252304233. The reversal of 1252304231 is 1324032521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324032521 = 7 ⋅189147503.

It is a cyclic number.

It is not a de Polignac number, because 1252304231 - 2¹⁰ = 1252303207 is a prime.

It is a super-2 number, since 2×1252304231² = 3136531773961002722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1252304197 and 1252304206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252304233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32955356 + ... + 32955393.

It is an arithmetic number, because the mean of its divisors is an integer number (329553750).

Almost surely, 2^1252304231 is an apocalyptic number.

1252304231 is a deficient number, since it is larger than the sum of its proper divisors (65910769).

1252304231 is an equidigital number, since it uses as much as digits as its factorization.

1252304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65910768.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1252304231 is about 35387.9108029847. The cubic root of 1252304231 is about 1077.8788474078.

Adding to 1252304231 its reverse (1324032521), we get a palindrome (2576336752).

The spelling of 1252304231 in words is "one billion, two hundred fifty-two million, three hundred four thousand, two hundred thirty-one".