147404557 has 2 divisors, whose sum is σ = 147404558. Its totient is φ = 147404556.

The previous prime is 147404507. The next prime is 147404563. The reversal of 147404557 is 755404741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147403881 + 676 = 12141^2 + 26^2 .

It is a cyclic number.

It is not a de Polignac number, because 147404557 - 2⁷ = 147404429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147404507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73702278 + 73702279.

It is an arithmetic number, because the mean of its divisors is an integer number (73702279).

Almost surely, 2^147404557 is an apocalyptic number.

It is an amenable number.

147404557 is a deficient number, since it is larger than the sum of its proper divisors (1).

147404557 is an equidigital number, since it uses as much as digits as its factorization.

147404557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 147404557 is about 12141.0278395200. The cubic root of 147404557 is about 528.2469156679.

The spelling of 147404557 in words is "one hundred forty-seven million, four hundred four thousand, five hundred fifty-seven".