162444409 has 2 divisors, whose sum is σ = 162444410. Its totient is φ = 162444408.

The previous prime is 162444397. The next prime is 162444437. The reversal of 162444409 is 904444261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 19713600 = 11947^2 + 4440^2 .

It is a cyclic number.

It is not a de Polignac number, because 162444409 - 2¹³ = 162436217 is a prime.

It is not a weakly prime, because it can be changed into another prime (162444449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81222204 + 81222205.

It is an arithmetic number, because the mean of its divisors is an integer number (81222205).

Almost surely, 2^162444409 is an apocalyptic number.

It is an amenable number.

162444409 is a deficient number, since it is larger than the sum of its proper divisors (1).

162444409 is an equidigital number, since it uses as much as digits as its factorization.

162444409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 162444409 is about 12745.3681390535. The cubic root of 162444409 is about 545.6342071289.

The spelling of 162444409 in words is "one hundred sixty-two million, four hundred forty-four thousand, four hundred nine".