147530247 has 4 divisors (see below), whose sum is σ = 196707000. Its totient is φ = 98353496.

The previous prime is 147530237. The next prime is 147530263. The reversal of 147530247 is 742035741.

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 147530247 - 2⁶ = 147530183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147530237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24588372 + ... + 24588377.

It is an arithmetic number, because the mean of its divisors is an integer number (49176750).

Almost surely, 2^147530247 is an apocalyptic number.

147530247 is a deficient number, since it is larger than the sum of its proper divisors (49176753).

147530247 is an equidigital number, since it uses as much as digits as its factorization.

147530247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49176752.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 147530247 is about 12146.2029869421. The cubic root of 147530247 is about 528.3970161660.

Adding to 147530247 its reverse (742035741), we get a palindrome (889565988).

The spelling of 147530247 in words is "one hundred forty-seven million, five hundred thirty thousand, two hundred forty-seven".