161541422 has 16 divisors (see below), whose sum is σ = 281063040. Its totient is φ = 68198328.

The previous prime is 161541407. The next prime is 161541433. The reversal of 161541422 is 224145161.

161541422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161541391 and 161541400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85172 + ... + 87047.

It is an arithmetic number, because the mean of its divisors is an integer number (17566440).

Almost surely, 2^161541422 is an apocalyptic number.

161541422 is a deficient number, since it is larger than the sum of its proper divisors (119521618).

161541422 is a wasteful number, since it uses less digits than its factorization.

161541422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172295.

The product of its digits is 1920, while the sum is 26.

The square root of 161541422 is about 12709.8946494454. The cubic root of 161541422 is about 544.6213142447.

Adding to 161541422 its reverse (224145161), we get a palindrome (385686583).

It can be divided in two parts, 16154 and 1422, that added together give a cube (17576 = 26³).

The spelling of 161541422 in words is "one hundred sixty-one million, five hundred forty-one thousand, four hundred twenty-two".