161010 has 24 divisors (see below), whose sum is σ = 418860. Its totient is φ = 42912.

The previous prime is 161009. The next prime is 161017. The reversal of 161010 is 10161.

It can be written as a sum of positive squares in 2 ways, for example, as 154449 + 6561 = 393^2 + 81^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 160983 and 161001.

It is not an unprimeable number, because it can be changed into a prime (161017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 805 + ... + 984.

2¹⁶¹⁰¹⁰ is an apocalyptic number.

161010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161010 is an abundant number, since it is smaller than the sum of its proper divisors (257850).

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

161010 is a wasteful number, since it uses less digits than its factorization.

161010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 161010 is about 401.2605138809. The cubic root of 161010 is about 54.4023445500.

Adding to 161010 its reverse (10161), we get a palindrome (171171).

The spelling of 161010 in words is "one hundred sixty-one thousand, ten".