147065661 has 6 divisors (see below), whose sum is σ = 212428190. Its totient is φ = 98043768.

The previous prime is 147065651. The next prime is 147065663. The reversal of 147065661 is 166560741.

It can be written as a sum of positive squares in only one way, i.e., 90725625 + 56340036 = 9525^2 + 7506^2 .

It is not a de Polignac number, because 147065661 - 2⁵ = 147065629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147065663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8170306 + ... + 8170323.

Almost surely, 2^147065661 is an apocalyptic number.

It is an amenable number.

147065661 is a deficient number, since it is larger than the sum of its proper divisors (65362529).

147065661 is a wasteful number, since it uses less digits than its factorization.

147065661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16340635 (or 16340632 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 147065661 is about 12127.0631646743. The cubic root of 147065661 is about 527.8417763680.

The spelling of 147065661 in words is "one hundred forty-seven million, sixty-five thousand, six hundred sixty-one".