161034478 has 16 divisors (see below), whose sum is σ = 263705904. Its totient is φ = 73143360.

The previous prime is 161034473. The next prime is 161034493. The reversal of 161034478 is 874430161.

It is a happy number.

161034478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161034473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56176 + ... + 58972.

It is an arithmetic number, because the mean of its divisors is an integer number (16481619).

Almost surely, 2^161034478 is an apocalyptic number.

161034478 is a deficient number, since it is larger than the sum of its proper divisors (102671426).

161034478 is a wasteful number, since it uses less digits than its factorization.

161034478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 161034478 is about 12689.9360912496. The cubic root of 161034478 is about 544.0510130038.

The spelling of 161034478 in words is "one hundred sixty-one million, thirty-four thousand, four hundred seventy-eight".