1145403925 has 6 divisors (see below), whose sum is σ = 1420300898. Its totient is φ = 916323120.

The previous prime is 1145403911. The next prime is 1145403929. The reversal of 1145403925 is 5293045411.

It can be written as a sum of positive squares in 3 ways, for example, as 300571569 + 844832356 = 17337^2 + 29066^2 .

It is not a de Polignac number, because 1145403925 - 2⁷ = 1145403797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145403929) 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 5 ways as a sum of consecutive naturals, for example, 22908054 + ... + 22908103.

Almost surely, 2^1145403925 is an apocalyptic number.

It is an amenable number.

1145403925 is a deficient number, since it is larger than the sum of its proper divisors (274896973).

1145403925 is an equidigital number, since it uses as much as digits as its factorization.

1145403925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45816167 (or 45816162 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 1145403925 is about 33843.8166435170. The cubic root of 1145403925 is about 1046.2919621826.

The spelling of 1145403925 in words is "one billion, one hundred forty-five million, four hundred three thousand, nine hundred twenty-five".