1273452253 has 8 divisors (see below), whose sum is σ = 1306821600. Its totient is φ = 1240429008.

The previous prime is 1273452239. The next prime is 1273452307. The reversal of 1273452253 is 3522543721.

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

It is a cyclic number.

It is not a de Polignac number, because 1273452253 - 2⁵ = 1273452221 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 (1273452203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79063 + ... + 93796.

It is an arithmetic number, because the mean of its divisors is an integer number (163352700).

Almost surely, 2^1273452253 is an apocalyptic number.

It is an amenable number.

1273452253 is a deficient number, since it is larger than the sum of its proper divisors (33369347).

1273452253 is a wasteful number, since it uses less digits than its factorization.

1273452253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173051.

The product of its digits is 50400, while the sum is 34.

The square root of 1273452253 is about 35685.4627684720. The cubic root of 1273452253 is about 1083.9124932766.

Adding to 1273452253 its reverse (3522543721), we get a palindrome (4795995974).

The spelling of 1273452253 in words is "one billion, two hundred seventy-three million, four hundred fifty-two thousand, two hundred fifty-three".