1274774245 has 4 divisors (see below), whose sum is σ = 1529729100. Its totient is φ = 1019819392.

The previous prime is 1274774233. The next prime is 1274774251. The reversal of 1274774245 is 5424774721.

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 483252289 + 791521956 = 21983^2 + 28134^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274774245 - 2¹⁷ = 1274643173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127477420 + ... + 127477429.

It is an arithmetic number, because the mean of its divisors is an integer number (382432275).

Almost surely, 2^1274774245 is an apocalyptic number.

It is an amenable number.

1274774245 is a deficient number, since it is larger than the sum of its proper divisors (254954855).

1274774245 is an equidigital number, since it uses as much as digits as its factorization.

1274774245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254954854.

The product of its digits is 439040, while the sum is 43.

The square root of 1274774245 is about 35703.9808004654. The cubic root of 1274774245 is about 1084.2874394331.

The spelling of 1274774245 in words is "one billion, two hundred seventy-four million, seven hundred seventy-four thousand, two hundred forty-five".