145142142025 has 12 divisors (see below), whose sum is σ = 180054816652. Its totient is φ = 116063029440.

The previous prime is 145142142017. The next prime is 145142142029. The reversal of 145142142025 is 520241241541.

It can be written as a sum of positive squares in 6 ways, for example, as 29250918841 + 115891223184 = 171029^2 + 340428^2 .

It is not a de Polignac number, because 145142142025 - 2³ = 145142142017 is a prime.

It is a super-2 number, since 2×145142142025² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145142142029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1208634 + ... + 1323283.

Almost surely, 2^145142142025 is an apocalyptic number.

It is an amenable number.

145142142025 is a deficient number, since it is larger than the sum of its proper divisors (34912674627).

145142142025 is a wasteful number, since it uses less digits than its factorization.

145142142025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534220 (or 2534215 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

Adding to 145142142025 its reverse (520241241541), we get a palindrome (665383383566).

The spelling of 145142142025 in words is "one hundred forty-five billion, one hundred forty-two million, one hundred forty-two thousand, twenty-five".