71479161 has 12 divisors (see below), whose sum is σ = 111189988. Its totient is φ = 43987104.

The previous prime is 71479157. The next prime is 71479181. The reversal of 71479161 is 16197417.

It can be written as a sum of positive squares in 2 ways, for example, as 3515625 + 67963536 = 1875^2 + 8244^2 .

It is not a de Polignac number, because 71479161 - 2² = 71479157 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71479141) 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, 305350 + ... + 305583.

Almost surely, 2^71479161 is an apocalyptic number.

It is an amenable number.

71479161 is a deficient number, since it is larger than the sum of its proper divisors (39710827).

71479161 is a wasteful number, since it uses less digits than its factorization.

71479161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610952 (or 610949 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 71479161 is about 8454.5349369436. The cubic root of 71479161 is about 415.0111982269.

The spelling of 71479161 in words is "seventy-one million, four hundred seventy-nine thousand, one hundred sixty-one".