147427081 has 2 divisors, whose sum is σ = 147427082. Its totient is φ = 147427080.

The previous prime is 147427051. The next prime is 147427121. The reversal of 147427081 is 180724741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 7241481 = 11840^2 + 2691^2 .

It is a cyclic number.

It is not a de Polignac number, because 147427081 - 2⁷ = 147426953 is a prime.

It is a super-2 number, since 2×147427081² = 43469488424361122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (147427031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73713540 + 73713541.

It is an arithmetic number, because the mean of its divisors is an integer number (73713541).

Almost surely, 2^147427081 is an apocalyptic number.

It is an amenable number.

147427081 is a deficient number, since it is larger than the sum of its proper divisors (1).

147427081 is an equidigital number, since it uses as much as digits as its factorization.

147427081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 147427081 is about 12141.9554026524. The cubic root of 147427081 is about 528.2738203710.

The spelling of 147427081 in words is "one hundred forty-seven million, four hundred twenty-seven thousand, eighty-one".