161079534 has 192 divisors, whose sum is σ = 471564288. Its totient is φ = 38491200.

The previous prime is 161079533. The next prime is 161079551. The reversal of 161079534 is 435970161.

161079534 is a `hidden beast` number, since 1 + 610 + 7 + 9 + 5 + 34 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161079533) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 988137 + ... + 988299.

It is an arithmetic number, because the mean of its divisors is an integer number (2456064).

Almost surely, 2^161079534 is an apocalyptic number.

161079534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161079534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235782144).

161079534 is an abundant number, since it is smaller than the sum of its proper divisors (310484754).

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

161079534 is a wasteful number, since it uses less digits than its factorization.

161079534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 161079534 is about 12691.7112321389. The cubic root of 161079534 is about 544.1017484673.

The spelling of 161079534 in words is "one hundred sixty-one million, seventy-nine thousand, five hundred thirty-four".