1225708793 has 8 divisors (see below), whose sum is σ = 1253294856. Its totient is φ = 1198288000.

The previous prime is 1225708777. The next prime is 1225708819. The reversal of 1225708793 is 3978075221.

It can be written as a sum of positive squares in 4 ways, for example, as 495196009 + 730512784 = 22253^2 + 27028^2 .

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 1225708793 - 2⁴ = 1225708777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225708703) 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, 26258 + ... + 56043.

It is an arithmetic number, because the mean of its divisors is an integer number (156661857).

Almost surely, 2^1225708793 is an apocalyptic number.

It is an amenable number.

1225708793 is a deficient number, since it is larger than the sum of its proper divisors (27586063).

1225708793 is an equidigital number, since it uses as much as digits as its factorization.

1225708793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82635.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1225708793 is about 35010.1241500227. The cubic root of 1225708793 is about 1070.1938080240.

The spelling of 1225708793 in words is "one billion, two hundred twenty-five million, seven hundred eight thousand, seven hundred ninety-three".