1145142025 has 6 divisors (see below), whose sum is σ = 1419976142. Its totient is φ = 916113600.

The previous prime is 1145142023. The next prime is 1145142029. The reversal of 1145142025 is 5202415411.

It can be written as a sum of positive squares in 3 ways, for example, as 876096 + 1144265929 = 936^2 + 33827^2 .

It is not a de Polignac number, because 1145142025 - 2¹ = 1145142023 is a prime.

It is a super-2 number, since 2×1145142025² = 2622700514842201250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 45805681 = 1145142025 / (1 + 1 + 4 + 5 + 1 + 4 + 2 + 0 + 2 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145142023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22902816 + ... + 22902865.

Almost surely, 2^1145142025 is an apocalyptic number.

It is an amenable number.

1145142025 is a deficient number, since it is larger than the sum of its proper divisors (274834117).

1145142025 is an equidigital number, since it uses as much as digits as its factorization.

1145142025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45805691 (or 45805686 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1145142025 is about 33839.9471778548. The cubic root of 1145142025 is about 1046.2122101850.

Adding to 1145142025 its reverse (5202415411), we get a palindrome (6347557436).

The spelling of 1145142025 in words is "one billion, one hundred forty-five million, one hundred forty-two thousand, twenty-five".