147224215 has 4 divisors (see below), whose sum is σ = 176669064. Its totient is φ = 117779368.

The previous prime is 147224201. The next prime is 147224227. The reversal of 147224215 is 512422741.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 147224215 - 2⁷ = 147224087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14722417 + ... + 14722426.

It is an arithmetic number, because the mean of its divisors is an integer number (44167266).

Almost surely, 2^147224215 is an apocalyptic number.

147224215 is a deficient number, since it is larger than the sum of its proper divisors (29444849).

147224215 is an equidigital number, since it uses as much as digits as its factorization.

147224215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29444848.

The product of its digits is 4480, while the sum is 28.

The square root of 147224215 is about 12133.5986005801. The cubic root of 147224215 is about 528.0313999826.

Adding to 147224215 its reverse (512422741), we get a palindrome (659646956).

The spelling of 147224215 in words is "one hundred forty-seven million, two hundred twenty-four thousand, two hundred fifteen".