161461116 has 36 divisors (see below), whose sum is σ = 418096224. Its totient is φ = 52507200.

The previous prime is 161461109. The next prime is 161461123. The reversal of 161461116 is 611164161.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (161461109) and next prime (161461123).

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 161461116.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53220 + ... + 56171.

It is an arithmetic number, because the mean of its divisors is an integer number (11613784).

Almost surely, 2^161461116 is an apocalyptic number.

It is an amenable number.

161461116 is an abundant number, since it is smaller than the sum of its proper divisors (256635108).

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

161461116 is a wasteful number, since it uses less digits than its factorization.

161461116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109442 (or 109437 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 161461116 is about 12706.7350645239. The cubic root of 161461116 is about 544.5310513095.

The spelling of 161461116 in words is "one hundred sixty-one million, four hundred sixty-one thousand, one hundred sixteen".