1125003513 has 16 divisors (see below), whose sum is σ = 1506988800. Its totient is φ = 746519760.

The previous prime is 1125003403. The next prime is 1125003553. The reversal of 1125003513 is 3153005211.

It is not a de Polignac number, because 1125003513 - 2¹² = 1124999417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125003513.

It is not an unprimeable number, because it can be changed into a prime (1125003553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1103518 + ... + 1104536.

It is an arithmetic number, because the mean of its divisors is an integer number (94186800).

Almost surely, 2^1125003513 is an apocalyptic number.

It is an amenable number.

1125003513 is a deficient number, since it is larger than the sum of its proper divisors (381985287).

1125003513 is a wasteful number, since it uses less digits than its factorization.

1125003513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1125003513 is about 33541.0720311680. The cubic root of 1125003513 is about 1040.0429940929.

Adding to 1125003513 its reverse (3153005211), we get a palindrome (4278008724).

The spelling of 1125003513 in words is "one billion, one hundred twenty-five million, three thousand, five hundred thirteen".