161429942 has 8 divisors (see below), whose sum is σ = 242244336. Its totient is φ = 80681832.

The previous prime is 161429941. The next prime is 161429963. The reversal of 161429942 is 249924161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161429896 and 161429905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161429941) 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 3 ways as a sum of consecutive naturals, for example, 9953 + ... + 20540.

It is an arithmetic number, because the mean of its divisors is an integer number (30280542).

Almost surely, 2^161429942 is an apocalyptic number.

161429942 is a deficient number, since it is larger than the sum of its proper divisors (80814394).

161429942 is a wasteful number, since it uses less digits than its factorization.

161429942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33142.

The product of its digits is 31104, while the sum is 38.

The square root of 161429942 is about 12705.5083330027. The cubic root of 161429942 is about 544.4960040609.

The spelling of 161429942 in words is "one hundred sixty-one million, four hundred twenty-nine thousand, nine hundred forty-two".