161770937 has 8 divisors (see below), whose sum is σ = 168947520. Its totient is φ = 154606320.

The previous prime is 161770879. The next prime is 161770943. The reversal of 161770937 is 739077161.

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 161770937 - 2¹² = 161766841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161770894 and 161770903.

It is not an unprimeable number, because it can be changed into a prime (161770337) 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, 35114 + ... + 39452.

It is an arithmetic number, because the mean of its divisors is an integer number (21118440).

Almost surely, 2^161770937 is an apocalyptic number.

It is an amenable number.

161770937 is a deficient number, since it is larger than the sum of its proper divisors (7176583).

161770937 is a wasteful number, since it uses less digits than its factorization.

161770937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 161770937 is about 12718.9204337475. The cubic root of 161770937 is about 544.8791214115.

The spelling of 161770937 in words is "one hundred sixty-one million, seven hundred seventy thousand, nine hundred thirty-seven".