161034804 has 240 divisors, whose sum is σ = 525275520. Its totient is φ = 41990400.

The previous prime is 161034793. The next prime is 161034817. The reversal of 161034804 is 408430161.

161034804 is a `hidden beast` number, since 1 + 610 + 3 + 48 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1594354 + ... + 1594454.

It is an arithmetic number, because the mean of its divisors is an integer number (2188648).

Almost surely, 2^161034804 is an apocalyptic number.

161034804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161034804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262637760).

161034804 is an abundant number, since it is smaller than the sum of its proper divisors (364240716).

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

161034804 is a wasteful number, since it uses less digits than its factorization.

161034804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 161034804 is about 12689.9489360675. The cubic root of 161034804 is about 544.0513801312.

Adding to 161034804 its reverse (408430161), we get a palindrome (569464965).

The spelling of 161034804 in words is "one hundred sixty-one million, thirty-four thousand, eight hundred four".