145125501043025 has 48 divisors (see below), whose sum is σ = 190130999587200. Its totient is φ = 109665222120960.

The previous prime is 145125501043013. The next prime is 145125501043027. The reversal of 145125501043025 is 520340105521541.

It is not a de Polignac number, because 145125501043025 - 2¹⁴ = 145125501026641 is a prime.

It is a super-2 number, since 2×145125501043025² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145125501043025.

It is not an unprimeable number, because it can be changed into a prime (145125501043027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38473031 + ... + 42076419.

It is an arithmetic number, because the mean of its divisors is an integer number (3961062491400).

Almost surely, 2^{145125501043025} is an apocalyptic number.

It is an amenable number.

145125501043025 is a deficient number, since it is larger than the sum of its proper divisors (45005498544175).

145125501043025 is a wasteful number, since it uses less digits than its factorization.

145125501043025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604298 (or 3604293 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 145125501043025 its reverse (520340105521541), we get a palindrome (665465606564566).

The spelling of 145125501043025 in words is "one hundred forty-five trillion, one hundred twenty-five billion, five hundred one million, forty-three thousand, twenty-five".