145215024 has 40 divisors (see below), whose sum is σ = 394885440. Its totient is φ = 45857088.

The previous prime is 145215019. The next prime is 145215089. The reversal of 145215024 is 420512541.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 145214985 and 145215003.

It is an unprimeable number.

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, 78702 + ... + 80525.

It is an arithmetic number, because the mean of its divisors is an integer number (9872136).

Almost surely, 2^145215024 is an apocalyptic number.

It is an amenable number.

145215024 is an abundant number, since it is smaller than the sum of its proper divisors (249670416).

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

145215024 is a wasteful number, since it uses less digits than its factorization.

145215024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159257 (or 159251 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145215024 is about 12050.5196568447. The cubic root of 145215024 is about 525.6183480641.

Adding to 145215024 its reverse (420512541), we get a palindrome (565727565).

The spelling of 145215024 in words is "one hundred forty-five million, two hundred fifteen thousand, twenty-four".