147144457 has 2 divisors, whose sum is σ = 147144458. Its totient is φ = 147144456.

The previous prime is 147144343. The next prime is 147144499. The reversal of 147144457 is 754441741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136048896 + 11095561 = 11664^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 147144457 - 2²⁷ = 12926729 is a prime.

It is not a weakly prime, because it can be changed into another prime (147145457) 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, 73572228 + 73572229.

It is an arithmetic number, because the mean of its divisors is an integer number (73572229).

Almost surely, 2^147144457 is an apocalyptic number.

It is an amenable number.

147144457 is a deficient number, since it is larger than the sum of its proper divisors (1).

147144457 is an equidigital number, since it uses as much as digits as its factorization.

147144457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62720, while the sum is 37.

The square root of 147144457 is about 12130.3114964126. The cubic root of 147144457 is about 527.9360299470.

The spelling of 147144457 in words is "one hundred forty-seven million, one hundred forty-four thousand, four hundred fifty-seven".