147941081 has 2 divisors, whose sum is σ = 147941082. Its totient is φ = 147941080.

The previous prime is 147941071. The next prime is 147941107. The reversal of 147941081 is 180149741.

147941081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139617856 + 8323225 = 11816^2 + 2885^2 .

It is an emirp because it is prime and its reverse (180149741) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147941081 is a prime.

It is a super-2 number, since 2×147941081² = 43773126894897122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (147941041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73970540 + 73970541.

It is an arithmetic number, because the mean of its divisors is an integer number (73970541).

Almost surely, 2^147941081 is an apocalyptic number.

It is an amenable number.

147941081 is a deficient number, since it is larger than the sum of its proper divisors (1).

147941081 is an equidigital number, since it uses as much as digits as its factorization.

147941081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 147941081 is about 12163.1032635590. The cubic root of 147941081 is about 528.8870450878.

The spelling of 147941081 in words is "one hundred forty-seven million, nine hundred forty-one thousand, eighty-one".