1393783225 has 6 divisors (see below), whose sum is σ = 1728291230. Its totient is φ = 1115026560.

The previous prime is 1393783147. The next prime is 1393783249. The reversal of 1393783225 is 5223873931.

It can be written as a sum of positive squares in 3 ways, for example, as 4804864 + 1388978361 = 2192^2 + 37269^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1393783225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27875640 + ... + 27875689.

Almost surely, 2^1393783225 is an apocalyptic number.

It is an amenable number.

1393783225 is a deficient number, since it is larger than the sum of its proper divisors (334508005).

1393783225 is an equidigital number, since it uses as much as digits as its factorization.

1393783225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55751339 (or 55751334 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 1393783225 is about 37333.4062871311. The cubic root of 1393783225 is about 1117.0306189706.

The spelling of 1393783225 in words is "one billion, three hundred ninety-three million, seven hundred eighty-three thousand, two hundred twenty-five".