161874671 has 8 divisors (see below), whose sum is σ = 185279904. Its totient is φ = 138539520.

The previous prime is 161874577. The next prime is 161874673. The reversal of 161874671 is 176478161.

161874671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-161874671 is a prime.

It is a super-2 number, since 2×161874671² = 52406818222716482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161874673) 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, 12470 + ... + 21891.

It is an arithmetic number, because the mean of its divisors is an integer number (23159988).

Almost surely, 2^161874671 is an apocalyptic number.

161874671 is a deficient number, since it is larger than the sum of its proper divisors (23405233).

161874671 is an equidigital number, since it uses as much as digits as its factorization.

161874671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35041.

The product of its digits is 56448, while the sum is 41.

The square root of 161874671 is about 12722.9977206632. The cubic root of 161874671 is about 544.9955626269.

The spelling of 161874671 in words is "one hundred sixty-one million, eight hundred seventy-four thousand, six hundred seventy-one".