161034641 has 8 divisors (see below), whose sum is σ = 162084480. Its totient is φ = 159988752.

The previous prime is 161034611. The next prime is 161034673. The reversal of 161034641 is 146430161.

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 161034641 - 2¹⁰ = 161033617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161034641.

It is not an unprimeable number, because it can be changed into a prime (161034611) 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, 130415 + ... + 131643.

It is an arithmetic number, because the mean of its divisors is an integer number (20260560).

Almost surely, 2^161034641 is an apocalyptic number.

It is an amenable number.

161034641 is a deficient number, since it is larger than the sum of its proper divisors (1049839).

161034641 is a wasteful number, since it uses less digits than its factorization.

161034641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 161034641 is about 12689.9425136602. The cubic root of 161034641 is about 544.0511965676.

The spelling of 161034641 in words is "one hundred sixty-one million, thirty-four thousand, six hundred forty-one".