1145544425 has 6 divisors (see below), whose sum is σ = 1420475118. Its totient is φ = 916435520.

The previous prime is 1145544419. The next prime is 1145544431. The reversal of 1145544425 is 5244455411.

It is an interprime number because it is at equal distance from previous prime (1145544419) and next prime (1145544431).

It can be written as a sum of positive squares in 3 ways, for example, as 21752896 + 1123791529 = 4664^2 + 33523^2 .

It is not a de Polignac number, because 1145544425 - 2¹⁰ = 1145543401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22910864 + ... + 22910913.

It is an arithmetic number, because the mean of its divisors is an integer number (236745853).

Almost surely, 2^1145544425 is an apocalyptic number.

It is an amenable number.

1145544425 is a deficient number, since it is larger than the sum of its proper divisors (274930693).

1145544425 is an equidigital number, since it uses as much as digits as its factorization.

1145544425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45821787 (or 45821782 counting only the distinct ones).

The product of its digits is 64000, while the sum is 35.

The square root of 1145544425 is about 33845.8922913845. The cubic root of 1145544425 is about 1046.3347412719.

Adding to 1145544425 its reverse (5244455411), we get a palindrome (6389999836).

The spelling of 1145544425 in words is "one billion, one hundred forty-five million, five hundred forty-four thousand, four hundred twenty-five".