1145225425 has 6 divisors (see below), whose sum is σ = 1420079558. Its totient is φ = 916180320.

The previous prime is 1145225413. The next prime is 1145225441. The reversal of 1145225425 is 5245225411.

It can be written as a sum of positive squares in 3 ways, for example, as 553536 + 1144671889 = 744^2 + 33833^2 .

It is not a de Polignac number, because 1145225425 - 2⁷ = 1145225297 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, 22904484 + ... + 22904533.

Almost surely, 2^1145225425 is an apocalyptic number.

It is an amenable number.

1145225425 is a deficient number, since it is larger than the sum of its proper divisors (274854133).

1145225425 is an equidigital number, since it uses as much as digits as its factorization.

1145225425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45809027 (or 45809022 counting only the distinct ones).

The product of its digits is 16000, while the sum is 31.

The square root of 1145225425 is about 33841.1794268462. The cubic root of 1145225425 is about 1046.2376079023.

The spelling of 1145225425 in words is "one billion, one hundred forty-five million, two hundred twenty-five thousand, four hundred twenty-five".