145523433 has 24 divisors (see below), whose sum is σ = 213966144. Its totient is φ = 87910240.

The previous prime is 145523429. The next prime is 145523449. The reversal of 145523433 is 334325541.

It is not a de Polignac number, because 145523433 - 2² = 145523429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145523433.

It is not an unprimeable number, because it can be changed into a prime (145523453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182191 + ... + 182987.

It is an arithmetic number, because the mean of its divisors is an integer number (8915256).

Almost surely, 2^145523433 is an apocalyptic number.

It is an amenable number.

145523433 is a deficient number, since it is larger than the sum of its proper divisors (68442711).

145523433 is a wasteful number, since it uses less digits than its factorization.

145523433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1314 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 145523433 is about 12063.3093718100. The cubic root of 145523433 is about 525.9901893046.

Adding to 145523433 its reverse (334325541), we get a palindrome (479848974).

The spelling of 145523433 in words is "one hundred forty-five million, five hundred twenty-three thousand, four hundred thirty-three".