147619081 has 2 divisors, whose sum is σ = 147619082. Its totient is φ = 147619080.

The previous prime is 147619079. The next prime is 147619091. The reversal of 147619081 is 180916741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123765625 + 23853456 = 11125^2 + 4884^2 .

It is a cyclic number.

It is not a de Polignac number, because 147619081 - 2¹ = 147619079 is a prime.

It is a super-2 number, since 2×147619081² = 43582786150569122, which contains 22 as substring.

Together with 147619079, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 147619081.

It is not a weakly prime, because it can be changed into another prime (147619051) 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, 73809540 + 73809541.

It is an arithmetic number, because the mean of its divisors is an integer number (73809541).

Almost surely, 2^147619081 is an apocalyptic number.

It is an amenable number.

147619081 is a deficient number, since it is larger than the sum of its proper divisors (1).

147619081 is an equidigital number, since it uses as much as digits as its factorization.

147619081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 147619081 is about 12149.8592995968. The cubic root of 147619081 is about 528.5030513762.

The spelling of 147619081 in words is "one hundred forty-seven million, six hundred nineteen thousand, eighty-one".