1225073057 has 18 divisors (see below), whose sum is σ = 1406745522. Its totient is φ = 1062686976.

The previous prime is 1225073033. The next prime is 1225073063. The reversal of 1225073057 is 7503705221.

It can be written as a sum of positive squares in 9 ways, for example, as 772617616 + 452455441 = 27796^2 + 21271^2 .

It is not a de Polignac number, because 1225073057 - 2⁶ = 1225072993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225073257) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1875743 + ... + 1876395.

It is an arithmetic number, because the mean of its divisors is an integer number (78152529).

Almost surely, 2^1225073057 is an apocalyptic number.

1225073057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1225073057 is a deficient number, since it is larger than the sum of its proper divisors (181672465).

1225073057 is an frugal number, since it uses more digits than its factorization.

1225073057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 1225073057 is about 35001.0436558683. The cubic root of 1225073057 is about 1070.0087509110.

Adding to 1225073057 its reverse (7503705221), we get a palindrome (8728778278).

The spelling of 1225073057 in words is "one billion, two hundred twenty-five million, seventy-three thousand, fifty-seven".