145024215 has 64 divisors (see below), whose sum is σ = 277724160. Its totient is φ = 63221760.

The previous prime is 145024213. The next prime is 145024237. The reversal of 145024215 is 512420541.

145024215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145024215 - 2¹ = 145024213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145024211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 295120 + ... + 295610.

It is an arithmetic number, because the mean of its divisors is an integer number (4339440).

Almost surely, 2^145024215 is an apocalyptic number.

145024215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145024215 is a deficient number, since it is larger than the sum of its proper divisors (132699945).

145024215 is a wasteful number, since it uses less digits than its factorization.

145024215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

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

The square root of 145024215 is about 12042.6000099646. The cubic root of 145024215 is about 525.3880305940.

Adding to 145024215 its reverse (512420541), we get a palindrome (657444756).

The spelling of 145024215 in words is "one hundred forty-five million, twenty-four thousand, two hundred fifteen".