161456434 has 16 divisors (see below), whose sum is σ = 245014272. Its totient is φ = 79789248.

The previous prime is 161456411. The next prime is 161456441. The reversal of 161456434 is 434654161.

161456434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161456434.

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, 103867 + ... + 105409.

It is an arithmetic number, because the mean of its divisors is an integer number (15313392).

Almost surely, 2^161456434 is an apocalyptic number.

161456434 is a deficient number, since it is larger than the sum of its proper divisors (83557838).

161456434 is a wasteful number, since it uses less digits than its factorization.

161456434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121.

The product of its digits is 34560, while the sum is 34.

The square root of 161456434 is about 12706.5508301820. The cubic root of 161456434 is about 544.5257878770.

The spelling of 161456434 in words is "one hundred sixty-one million, four hundred fifty-six thousand, four hundred thirty-four".