147476328521 has 2 divisors, whose sum is σ = 147476328522. Its totient is φ = 147476328520.

The previous prime is 147476328449. The next prime is 147476328523. The reversal of 147476328521 is 125823674741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95938248121 + 51538080400 = 309739^2 + 227020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147476328521 is a prime.

Together with 147476328523, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147476328521.

It is not a weakly prime, because it can be changed into another prime (147476328523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73738164260 + 73738164261.

It is an arithmetic number, because the mean of its divisors is an integer number (73738164261).

Almost surely, 2^147476328521 is an apocalyptic number.

It is an amenable number.

147476328521 is a deficient number, since it is larger than the sum of its proper divisors (1).

147476328521 is an equidigital number, since it uses as much as digits as its factorization.

147476328521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 50.

The spelling of 147476328521 in words is "one hundred forty-seven billion, four hundred seventy-six million, three hundred twenty-eight thousand, five hundred twenty-one".