161741430 has 48 divisors (see below), whose sum is σ = 431902224. Its totient is φ = 41964480.

The previous prime is 161741413. The next prime is 161741431. The reversal of 161741430 is 34147161.

It is a happy number.

161741430 is a `hidden beast` number, since 1 + 617 + 4 + 1 + 43 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 161741394 and 161741403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161741431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20956 + ... + 27615.

It is an arithmetic number, because the mean of its divisors is an integer number (8997963).

Almost surely, 2^161741430 is an apocalyptic number.

161741430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161741430 is an abundant number, since it is smaller than the sum of its proper divisors (270160794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161741430 is a wasteful number, since it uses less digits than its factorization.

161741430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48621 (or 48618 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 161741430 is about 12717.7604160481. The cubic root of 161741430 is about 544.8459907677.

Adding to 161741430 its reverse (34147161), we get a palindrome (195888591).

The spelling of 161741430 in words is "one hundred sixty-one million, seven hundred forty-one thousand, four hundred thirty".