162993449 has 2 divisors, whose sum is σ = 162993450. Its totient is φ = 162993448.

The previous prime is 162993437. The next prime is 162993463. The reversal of 162993449 is 944399261.

162993449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155875225 + 7118224 = 12485^2 + 2668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162993449 is a prime.

It is not a weakly prime, because it can be changed into another prime (162993469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81496724 + 81496725.

It is an arithmetic number, because the mean of its divisors is an integer number (81496725).

Almost surely, 2^162993449 is an apocalyptic number.

It is an amenable number.

162993449 is a deficient number, since it is larger than the sum of its proper divisors (1).

162993449 is an equidigital number, since it uses as much as digits as its factorization.

162993449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 47.

The square root of 162993449 is about 12766.8887752655. Note that the first 3 decimals coincide. The cubic root of 162993449 is about 546.2482389930.

The spelling of 162993449 in words is "one hundred sixty-two million, nine hundred ninety-three thousand, four hundred forty-nine".