1125403345 has 32 divisors (see below), whose sum is σ = 1560545280. Its totient is φ = 770523840.

The previous prime is 1125403343. The next prime is 1125403361. The reversal of 1125403345 is 5433045211.

It is not a de Polignac number, because 1125403345 - 2¹ = 1125403343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125403343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167032 + ... + 173638.

It is an arithmetic number, because the mean of its divisors is an integer number (48767040).

Almost surely, 2^1125403345 is an apocalyptic number.

It is an amenable number.

1125403345 is a deficient number, since it is larger than the sum of its proper divisors (435141935).

1125403345 is a wasteful number, since it uses less digits than its factorization.

1125403345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1125403345 is about 33547.0318359166. The cubic root of 1125403345 is about 1040.1661916981.

Adding to 1125403345 its reverse (5433045211), we get a palindrome (6558448556).

The spelling of 1125403345 in words is "one billion, one hundred twenty-five million, four hundred three thousand, three hundred forty-five".