1245073113 has 10 divisors (see below), whose sum is σ = 1859924154. Its totient is φ = 830048688.

The previous prime is 1245073091. The next prime is 1245073163. The reversal of 1245073113 is 3113705421.

1245073113 is a `hidden beast` number, since 124 + 507 + 31 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 929762064 + 315311049 = 30492^2 + 17757^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1245073113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1245073163) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7685556 + ... + 7685717.

Almost surely, 2^1245073113 is an apocalyptic number.

It is an amenable number.

1245073113 is a deficient number, since it is larger than the sum of its proper divisors (614851041).

1245073113 is an equidigital number, since it uses as much as digits as its factorization.

1245073113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15371285 (or 15371276 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 1245073113 is about 35285.5935616790. The cubic root of 1245073113 is about 1075.8001939749.

Adding to 1245073113 its reverse (3113705421), we get a palindrome (4358778534).

The spelling of 1245073113 in words is "one billion, two hundred forty-five million, seventy-three thousand, one hundred thirteen".