1253043268 has 6 divisors (see below), whose sum is σ = 2192825726. Its totient is φ = 626521632.

The previous prime is 1253043257. The next prime is 1253043277. The reversal of 1253043268 is 8623403521.

It can be written as a sum of positive squares in only one way, i.e., 860131584 + 392911684 = 29328^2 + 19822^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156630405 + ... + 156630412.

Almost surely, 2^1253043268 is an apocalyptic number.

It is an amenable number.

1253043268 is a deficient number, since it is larger than the sum of its proper divisors (939782458).

1253043268 is a wasteful number, since it uses less digits than its factorization.

1253043268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313260821 (or 313260819 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1253043268 is about 35398.3512045406. The cubic root of 1253043268 is about 1078.0908394783.

Adding to 1253043268 its reverse (8623403521), we get a palindrome (9876446789).

The spelling of 1253043268 in words is "one billion, two hundred fifty-three million, forty-three thousand, two hundred sixty-eight".