161137333 has 12 divisors (see below), whose sum is σ = 195596640. Its totient is φ = 132111672.

The previous prime is 161137321. The next prime is 161137337. The reversal of 161137333 is 333731161.

161137333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-161137333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161137337) 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, 70363 + ... + 72616.

It is an arithmetic number, because the mean of its divisors is an integer number (16299720).

Almost surely, 2^161137333 is an apocalyptic number.

It is an amenable number.

161137333 is a deficient number, since it is larger than the sum of its proper divisors (34459307).

161137333 is a wasteful number, since it uses less digits than its factorization.

161137333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143016 (or 143009 counting only the distinct ones).

The product of its digits is 3402, while the sum is 28.

The square root of 161137333 is about 12693.9880652221. The cubic root of 161137333 is about 544.1668193786.

Adding to 161137333 its reverse (333731161), we get a palindrome (494868494).

The spelling of 161137333 in words is "one hundred sixty-one million, one hundred thirty-seven thousand, three hundred thirty-three".