145431524 has 12 divisors (see below), whose sum is σ = 290863104. Its totient is φ = 62327784.

The previous prime is 145431493. The next prime is 145431527. The reversal of 145431524 is 425134541.

145431524 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

145431524 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (145431527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2596964 + ... + 2597019.

It is an arithmetic number, because the mean of its divisors is an integer number (24238592).

Almost surely, 2^145431524 is an apocalyptic number.

145431524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145431524 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

145431524 is a wasteful number, since it uses less digits than its factorization.

145431524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193994 (or 5193992 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 145431524 is about 12059.4993262573. The cubic root of 145431524 is about 525.8794318540.

The spelling of 145431524 in words is "one hundred forty-five million, four hundred thirty-one thousand, five hundred twenty-four".