145543425 has 48 divisors (see below), whose sum is σ = 253317120. Its totient is φ = 73592640.

The previous prime is 145543417. The next prime is 145543427. The reversal of 145543425 is 524345541.

It is not a de Polignac number, because 145543425 - 2³ = 145543417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145543427) 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, 239472 + ... + 240078.

It is an arithmetic number, because the mean of its divisors is an integer number (5277440).

Almost surely, 2^145543425 is an apocalyptic number.

145543425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145543425 is a deficient number, since it is larger than the sum of its proper divisors (107773695).

145543425 is a wasteful number, since it uses less digits than its factorization.

145543425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 777 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 145543425 is about 12064.1379716911. The cubic root of 145543425 is about 526.0142750346.

Adding to 145543425 its reverse (524345541), we get a palindrome (669888966).

The spelling of 145543425 in words is "one hundred forty-five million, five hundred forty-three thousand, four hundred twenty-five".