161541141 has 8 divisors (see below), whose sum is σ = 217808640. Its totient is φ = 106483872.

The previous prime is 161541103. The next prime is 161541143. The reversal of 161541141 is 141145161.

161541141 = 1303² + 1304² + ... + 1391².

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

It is not a de Polignac number, because 161541141 - 2⁷ = 161541013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161541143) 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, 302245 + ... + 302778.

It is an arithmetic number, because the mean of its divisors is an integer number (27226080).

Almost surely, 2^161541141 is an apocalyptic number.

It is an amenable number.

161541141 is a deficient number, since it is larger than the sum of its proper divisors (56267499).

161541141 is an equidigital number, since it uses as much as digits as its factorization.

161541141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605115.

The product of its digits is 480, while the sum is 24.

The square root of 161541141 is about 12709.8835950610. The cubic root of 161541141 is about 544.6209984564.

The spelling of 161541141 in words is "one hundred sixty-one million, five hundred forty-one thousand, one hundred forty-one".