1225070647 has 2 divisors, whose sum is σ = 1225070648. Its totient is φ = 1225070646.

The previous prime is 1225070603. The next prime is 1225070653. The reversal of 1225070647 is 7460705221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225070647 - 2¹¹ = 1225068599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225070687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612535323 + 612535324.

It is an arithmetic number, because the mean of its divisors is an integer number (612535324).

Almost surely, 2^1225070647 is an apocalyptic number.

1225070647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225070647 is an equidigital number, since it uses as much as digits as its factorization.

1225070647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 1225070647 is about 35001.0092283065. The cubic root of 1225070647 is about 1070.0080492596.

Adding to 1225070647 its reverse (7460705221), we get a palindrome (8685775868).

The spelling of 1225070647 in words is "one billion, two hundred twenty-five million, seventy thousand, six hundred forty-seven".