145133424 has 40 divisors (see below), whose sum is σ = 416587920. Its totient is φ = 48377664.

The previous prime is 145133423. The next prime is 145133447. The reversal of 145133424 is 424331541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145133423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167547 + ... + 168410.

It is an arithmetic number, because the mean of its divisors is an integer number (10414698).

Almost surely, 2^145133424 is an apocalyptic number.

It is an amenable number.

145133424 is an abundant number, since it is smaller than the sum of its proper divisors (271454496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145133424 is a wasteful number, since it uses less digits than its factorization.

145133424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335974 (or 335962 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 145133424 is about 12047.1334349712. The cubic root of 145133424 is about 525.5198768631.

Adding to 145133424 its reverse (424331541), we get a palindrome (569464965).

The spelling of 145133424 in words is "one hundred forty-five million, one hundred thirty-three thousand, four hundred twenty-four".