145524004 has 24 divisors (see below), whose sum is σ = 259145600. Its totient is φ = 71491680.

The previous prime is 145523981. The next prime is 145524007. The reversal of 145524004 is 400425541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145524004.

It is not an unprimeable number, because it can be changed into a prime (145524007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71359 + ... + 73369.

Almost surely, 2^145524004 is an apocalyptic number.

It is an amenable number.

145524004 is a deficient number, since it is larger than the sum of its proper divisors (113621596).

145524004 is a wasteful number, since it uses less digits than its factorization.

145524004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 145524004 is about 12063.3330385926. Note that the first 3 decimals coincide. The cubic root of 145524004 is about 525.9908772580.

Adding to 145524004 its reverse (400425541), we get a palindrome (545949545).

The spelling of 145524004 in words is "one hundred forty-five million, five hundred twenty-four thousand, four".