145186841 has 2 divisors, whose sum is σ = 145186842. Its totient is φ = 145186840.

The previous prime is 145186831. The next prime is 145186889. The reversal of 145186841 is 148681541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144696841 + 490000 = 12029^2 + 700^2 .

It is a cyclic number.

It is not a de Polignac number, because 145186841 - 2⁶ = 145186777 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 145186795 and 145186804.

It is not a weakly prime, because it can be changed into another prime (145186831) 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, 72593420 + 72593421.

It is an arithmetic number, because the mean of its divisors is an integer number (72593421).

Almost surely, 2^145186841 is an apocalyptic number.

It is an amenable number.

145186841 is a deficient number, since it is larger than the sum of its proper divisors (1).

145186841 is an equidigital number, since it uses as much as digits as its factorization.

145186841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30720, while the sum is 38.

The square root of 145186841 is about 12049.3502314440. The cubic root of 145186841 is about 525.5843422615.

The spelling of 145186841 in words is "one hundred forty-five million, one hundred eighty-six thousand, eight hundred forty-one".