161063842 has 16 divisors (see below), whose sum is σ = 246313440. Its totient is φ = 78972192.

The previous prime is 161063839. The next prime is 161063891. The reversal of 161063842 is 248360161.

It is a happy number.

It is a super-2 number, since 2×161063842² = 51883122399601928, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23053 + ... + 29215.

It is an arithmetic number, because the mean of its divisors is an integer number (15394590).

Almost surely, 2^161063842 is an apocalyptic number.

161063842 is a deficient number, since it is larger than the sum of its proper divisors (85249598).

161063842 is a wasteful number, since it uses less digits than its factorization.

161063842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 161063842 is about 12691.0930183338. The cubic root of 161063842 is about 544.0840795107.

The spelling of 161063842 in words is "one hundred sixty-one million, sixty-three thousand, eight hundred forty-two".