147755977 has 2 divisors, whose sum is σ = 147755978. Its totient is φ = 147755976.

The previous prime is 147755963. The next prime is 147755987. The reversal of 147755977 is 779557741.

147755977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94012416 + 53743561 = 9696^2 + 7331^2 .

It is an emirp because it is prime and its reverse (779557741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147755977 - 2⁷ = 147755849 is a prime.

It is not a weakly prime, because it can be changed into another prime (147755917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73877988 + 73877989.

It is an arithmetic number, because the mean of its divisors is an integer number (73877989).

Almost surely, 2^147755977 is an apocalyptic number.

It is an amenable number.

147755977 is a deficient number, since it is larger than the sum of its proper divisors (1).

147755977 is an equidigital number, since it uses as much as digits as its factorization.

147755977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160900, while the sum is 52.

The square root of 147755977 is about 12155.4916395841. The cubic root of 147755977 is about 528.6663717273. Note that the first 3 decimals are identical.

The spelling of 147755977 in words is "one hundred forty-seven million, seven hundred fifty-five thousand, nine hundred seventy-seven".