161562 has 8 divisors (see below), whose sum is σ = 323136. Its totient is φ = 53852.

The previous prime is 161561. The next prime is 161563. The reversal of 161562 is 265161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161561) and next prime (161563).

It is a sphenic number, since it is the product of 3 distinct primes.

161562 is an admirable number.

It is a super-2 number, since 2×161562² = 52204559688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13458 + ... + 13469.

It is an arithmetic number, because the mean of its divisors is an integer number (40392).

2¹⁶¹⁵⁶² is an apocalyptic number.

161562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161562 is a wasteful number, since it uses less digits than its factorization.

161562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26932.

The product of its digits is 360, while the sum is 21.

The square root of 161562 is about 401.9477577994. The cubic root of 161562 is about 54.4644438843.

The spelling of 161562 in words is "one hundred sixty-one thousand, five hundred sixty-two".