145523044 has 24 divisors (see below), whose sum is σ = 265398840. Its totient is φ = 69732096.

The previous prime is 145523041. The next prime is 145523069. The reversal of 145523044 is 440325541.

It can be written as a sum of positive squares in 4 ways, for example, as 8352100 + 137170944 = 2890^2 + 11712^2 .

It is not an unprimeable number, because it can be changed into a prime (145523041) 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, 11314 + ... + 20470.

It is an arithmetic number, because the mean of its divisors is an integer number (11058285).

Almost surely, 2^145523044 is an apocalyptic number.

It is an amenable number.

145523044 is a deficient number, since it is larger than the sum of its proper divisors (119875796).

145523044 is a wasteful number, since it uses less digits than its factorization.

145523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9327 (or 9325 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 145523044 is about 12063.2932485288. The cubic root of 145523044 is about 525.9897206278.

Adding to 145523044 its reverse (440325541), we get a palindrome (585848585).

The spelling of 145523044 in words is "one hundred forty-five million, five hundred twenty-three thousand, forty-four".