145241215 has 8 divisors (see below), whose sum is σ = 199188000. Its totient is φ = 99593952.

The previous prime is 145241207. The next prime is 145241267. The reversal of 145241215 is 512142541.

145241215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145241215 - 2³ = 145241207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145241215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2074840 + ... + 2074909.

It is an arithmetic number, because the mean of its divisors is an integer number (24898500).

Almost surely, 2^145241215 is an apocalyptic number.

145241215 is a deficient number, since it is larger than the sum of its proper divisors (53946785).

145241215 is an equidigital number, since it uses as much as digits as its factorization.

145241215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4149761.

The product of its digits is 1600, while the sum is 25.

The square root of 145241215 is about 12051.6063244698. The cubic root of 145241215 is about 525.6499463616.

Adding to 145241215 its reverse (512142541), we get a palindrome (657383756).

The spelling of 145241215 in words is "one hundred forty-five million, two hundred forty-one thousand, two hundred fifteen".