161347371 has 4 divisors (see below), whose sum is σ = 215129832. Its totient is φ = 107564912.

The previous prime is 161347363. The next prime is 161347393. The reversal of 161347371 is 173743161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 161347371 - 2³ = 161347363 is a prime.

It is a super-2 number, since 2×161347371² = 52065948257223282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161347321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26891226 + ... + 26891231.

It is an arithmetic number, because the mean of its divisors is an integer number (53782458).

Almost surely, 2^161347371 is an apocalyptic number.

161347371 is a deficient number, since it is larger than the sum of its proper divisors (53782461).

161347371 is an equidigital number, since it uses as much as digits as its factorization.

161347371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53782460.

The product of its digits is 10584, while the sum is 33.

The square root of 161347371 is about 12702.2584999676. The cubic root of 161347371 is about 544.4031521262.

It can be divided in two parts, 1613 and 47371, that added together give a palindrome (48984).

The spelling of 161347371 in words is "one hundred sixty-one million, three hundred forty-seven thousand, three hundred seventy-one".