161405094 has 8 divisors (see below), whose sum is σ = 322810200. Its totient is φ = 53801696.

The previous prime is 161405093. The next prime is 161405143. The reversal of 161405094 is 490504161.

It is a happy number.

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

161405094 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161405093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13450419 + ... + 13450430.

It is an arithmetic number, because the mean of its divisors is an integer number (40351275).

Almost surely, 2^161405094 is an apocalyptic number.

161405094 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161405094 is a wasteful number, since it uses less digits than its factorization.

161405094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26900854.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 161405094 is about 12704.5304517719. The cubic root of 161405094 is about 544.4680655616.

The spelling of 161405094 in words is "one hundred sixty-one million, four hundred five thousand, ninety-four".