162493489 has 2 divisors, whose sum is σ = 162493490. Its totient is φ = 162493488.

The previous prime is 162493483. The next prime is 162493543. The reversal of 162493489 is 984394261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158331889 + 4161600 = 12583^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 162493489 - 2³ = 162493481 is a prime.

It is not a weakly prime, because it can be changed into another prime (162493481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81246744 + 81246745.

It is an arithmetic number, because the mean of its divisors is an integer number (81246745).

Almost surely, 2^162493489 is an apocalyptic number.

It is an amenable number.

162493489 is a deficient number, since it is larger than the sum of its proper divisors (1).

162493489 is an equidigital number, since it uses as much as digits as its factorization.

162493489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The square root of 162493489 is about 12747.2933989926. The cubic root of 162493489 is about 545.6891531675.

The spelling of 162493489 in words is "one hundred sixty-two million, four hundred ninety-three thousand, four hundred eighty-nine".