145067081 has 2 divisors, whose sum is σ = 145067082. Its totient is φ = 145067080.

The previous prime is 145067023. The next prime is 145067101. The reversal of 145067081 is 180760541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117072400 + 27994681 = 10820^2 + 5291^2 .

It is a cyclic number.

It is not a de Polignac number, because 145067081 - 2¹⁰ = 145066057 is a prime.

It is a super-2 number, since 2×145067081² = 42088915979721122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145067281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72533540 + 72533541.

It is an arithmetic number, because the mean of its divisors is an integer number (72533541).

Almost surely, 2^145067081 is an apocalyptic number.

It is an amenable number.

145067081 is a deficient number, since it is larger than the sum of its proper divisors (1).

145067081 is an equidigital number, since it uses as much as digits as its factorization.

145067081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 145067081 is about 12044.3796436346. The cubic root of 145067081 is about 525.4397899151.

The spelling of 145067081 in words is "one hundred forty-five million, sixty-seven thousand, eighty-one".