145036849 has 2 divisors, whose sum is σ = 145036850. Its totient is φ = 145036848.

The previous prime is 145036847. The next prime is 145036867. The reversal of 145036849 is 948630541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126157824 + 18879025 = 11232^2 + 4345^2 .

It is a cyclic number.

It is not a de Polignac number, because 145036849 - 2¹ = 145036847 is a prime.

Together with 145036847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145036841) 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, 72518424 + 72518425.

It is an arithmetic number, because the mean of its divisors is an integer number (72518425).

Almost surely, 2^145036849 is an apocalyptic number.

It is an amenable number.

145036849 is a deficient number, since it is larger than the sum of its proper divisors (1).

145036849 is an equidigital number, since it uses as much as digits as its factorization.

145036849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 145036849 is about 12043.1245530386. The cubic root of 145036849 is about 525.4032868040.

The spelling of 145036849 in words is "one hundred forty-five million, thirty-six thousand, eight hundred forty-nine".