614881161 has 12 divisors (see below), whose sum is σ = 890111092. Its totient is φ = 409021056.

The previous prime is 614881139. The next prime is 614881231. The reversal of 614881161 is 161188416.

614881161 is a `hidden beast` number, since 61 + 488 + 116 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 319694400 + 295186761 = 17880^2 + 17181^2 .

It is not a de Polignac number, because 614881161 - 2¹⁵ = 614848393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (614881121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70636 + ... + 78861.

Almost surely, 2^614881161 is an apocalyptic number.

It is an amenable number.

614881161 is a deficient number, since it is larger than the sum of its proper divisors (275229931).

614881161 is a wasteful number, since it uses less digits than its factorization.

614881161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149960 (or 149957 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 614881161 is about 24796.7973940184. The cubic root of 614881161 is about 850.3487201213.

The spelling of 614881161 in words is "six hundred fourteen million, eight hundred eighty-one thousand, one hundred sixty-one".