145041215 has 16 divisors (see below), whose sum is σ = 191268000. Its totient is φ = 104709120.

The previous prime is 145041199. The next prime is 145041217. The reversal of 145041215 is 512140541.

It is not a de Polignac number, because 145041215 - 2⁴ = 145041199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145041217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090 + ... + 17159.

It is an arithmetic number, because the mean of its divisors is an integer number (11954250).

Almost surely, 2^145041215 is an apocalyptic number.

145041215 is a deficient number, since it is larger than the sum of its proper divisors (46226785).

145041215 is a wasteful number, since it uses less digits than its factorization.

145041215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19402.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 145041215 is about 12043.3058169258. The cubic root of 145041215 is about 525.4085587693.

Adding to 145041215 its reverse (512140541), we get a palindrome (657181756).

The spelling of 145041215 in words is "one hundred forty-five million, forty-one thousand, two hundred fifteen".