161428494 has 16 divisors (see below), whose sum is σ = 322981632. Its totient is φ = 53788728.

The previous prime is 161428489. The next prime is 161428507. The reversal of 161428494 is 494824161.

161428494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×161428494³ (a number of 26 digits) contains 333 as substring.

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, 26937 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (20186352).

Almost surely, 2^161428494 is an apocalyptic number.

161428494 is an abundant number, since it is smaller than the sum of its proper divisors (161553138).

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

161428494 is a wasteful number, since it uses less digits than its factorization.

161428494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391.

The product of its digits is 55296, while the sum is 39.

The square root of 161428494 is about 12705.4513497160. The cubic root of 161428494 is about 544.4943760428.

The spelling of 161428494 in words is "one hundred sixty-one million, four hundred twenty-eight thousand, four hundred ninety-four".