1254628273 has 4 divisors (see below), whose sum is σ = 1320661360. Its totient is φ = 1188595188.

The previous prime is 1254628267. The next prime is 1254628279. The reversal of 1254628273 is 3728264521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1254628267) and next prime (1254628279).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1254628273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1254628279) 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, 33016515 + ... + 33016552.

It is an arithmetic number, because the mean of its divisors is an integer number (330165340).

Almost surely, 2^1254628273 is an apocalyptic number.

It is an amenable number.

1254628273 is a deficient number, since it is larger than the sum of its proper divisors (66033087).

1254628273 is an equidigital number, since it uses as much as digits as its factorization.

1254628273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66033086.

The product of its digits is 161280, while the sum is 40.

The square root of 1254628273 is about 35420.7322482187. The cubic root of 1254628273 is about 1078.5452157499.

The spelling of 1254628273 in words is "one billion, two hundred fifty-four million, six hundred twenty-eight thousand, two hundred seventy-three".