147230522 has 4 divisors (see below), whose sum is σ = 220845786. Its totient is φ = 73615260.

The previous prime is 147230497. The next prime is 147230527. The reversal of 147230522 is 225032741.

147230522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225032741 = 457 ⋅492413.

It can be written as a sum of positive squares in only one way, i.e., 82283041 + 64947481 = 9071^2 + 8059^2 .

It is a junction number, because it is equal to n+sod(n) for n = 147230491 and 147230500.

It is not an unprimeable number, because it can be changed into a prime (147230527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36807629 + ... + 36807632.

Almost surely, 2^147230522 is an apocalyptic number.

147230522 is a deficient number, since it is larger than the sum of its proper divisors (73615264).

147230522 is an equidigital number, since it uses as much as digits as its factorization.

147230522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73615263.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 147230522 is about 12133.8584959608. The cubic root of 147230522 is about 528.0389400612.

The spelling of 147230522 in words is "one hundred forty-seven million, two hundred thirty thousand, five hundred twenty-two".