1125152403 has 4 divisors (see below), whose sum is σ = 1500203208. Its totient is φ = 750101600.

The previous prime is 1125152377. The next prime is 1125152417. The reversal of 1125152403 is 3042515211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125152403 - 2⁶ = 1125152339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125152473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187525398 + ... + 187525403.

It is an arithmetic number, because the mean of its divisors is an integer number (375050802).

Almost surely, 2^1125152403 is an apocalyptic number.

1125152403 is a deficient number, since it is larger than the sum of its proper divisors (375050805).

1125152403 is an equidigital number, since it uses as much as digits as its factorization.

1125152403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375050804.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1125152403 is about 33543.2914753457. The cubic root of 1125152403 is about 1040.0888740002.

Adding to 1125152403 its reverse (3042515211), we get a palindrome (4167667614).

It can be divided in two parts, 112 and 5152403, that added together give a palindrome (5152515).

The spelling of 1125152403 in words is "one billion, one hundred twenty-five million, one hundred fifty-two thousand, four hundred three".