1225415357 has 2 divisors, whose sum is σ = 1225415358. Its totient is φ = 1225415356.

The previous prime is 1225415311. The next prime is 1225415363. The reversal of 1225415357 is 7535145221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679071481 + 546343876 = 26059^2 + 23374^2 .

It is an emirp because it is prime and its reverse (7535145221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1225415357 - 2⁶ = 1225415293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225415377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612707678 + 612707679.

It is an arithmetic number, because the mean of its divisors is an integer number (612707679).

Almost surely, 2^1225415357 is an apocalyptic number.

It is an amenable number.

1225415357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225415357 is an equidigital number, since it uses as much as digits as its factorization.

1225415357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 35.

The square root of 1225415357 is about 35005.9331685359. The cubic root of 1225415357 is about 1070.1083993594.

The spelling of 1225415357 in words is "one billion, two hundred twenty-five million, four hundred fifteen thousand, three hundred fifty-seven".