162561385 has 16 divisors (see below), whose sum is σ = 230630400. Its totient is φ = 107626176.

The previous prime is 162561383. The next prime is 162561407. The reversal of 162561385 is 583165261.

It is not a de Polignac number, because 162561385 - 2¹ = 162561383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162561383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79065 + ... + 81094.

It is an arithmetic number, because the mean of its divisors is an integer number (14414400).

Almost surely, 2^162561385 is an apocalyptic number.

It is an amenable number.

162561385 is a deficient number, since it is larger than the sum of its proper divisors (68069015).

162561385 is a wasteful number, since it uses less digits than its factorization.

162561385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160200.

The product of its digits is 43200, while the sum is 37.

The square root of 162561385 is about 12749.9562744348. The cubic root of 162561385 is about 545.7651458567.

The spelling of 162561385 in words is "one hundred sixty-two million, five hundred sixty-one thousand, three hundred eighty-five".