161337 has 8 divisors (see below), whose sum is σ = 234720. Its totient is φ = 97760.

The previous prime is 161333. The next prime is 161339. The reversal of 161337 is 733161.

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

It is a cyclic number.

It is not a de Polignac number, because 161337 - 2² = 161333 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 161337.

It is not an unprimeable number, because it can be changed into a prime (161333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412 + ... + 2477.

It is an arithmetic number, because the mean of its divisors is an integer number (29340).

2¹⁶¹³³⁷ is an apocalyptic number.

It is an amenable number.

161337 is a deficient number, since it is larger than the sum of its proper divisors (73383).

161337 is a wasteful number, since it uses less digits than its factorization.

161337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903.

The product of its digits is 378, while the sum is 21.

The square root of 161337 is about 401.6677731658. The cubic root of 161337 is about 54.4391487591.

Adding to 161337 its reverse (733161), we get a palindrome (894498).

The spelling of 161337 in words is "one hundred sixty-one thousand, three hundred thirty-seven".