147278645361 has 15 divisors (see below), whose sum is σ = 220014000283. Its totient is φ = 98183460960.

The previous prime is 147278645347. The next prime is 147278645401. The reversal of 147278645361 is 163546872741.

The square root of 147278645361 is 383769.

It is a perfect power (a square), and thus also a powerful number.

147278645361 is a `hidden beast` number, since 1 + 4 + 7 + 27 + 86 + 4 + 536 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94690982961 + 52587662400 = 307719^2 + 229320^2 .

It is a de Polignac number, because none of the positive numbers 2^k-147278645361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 147278645298 and 147278645307.

It is not an unprimeable number, because it can be changed into a prime (147278665361) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3432601 + ... + 3475241.

Almost surely, 2^147278645361 is an apocalyptic number.

147278645361 is the 383769-th square number.

147278645361 is the 191885-th centered octagonal number.

It is an amenable number.

147278645361 is a deficient number, since it is larger than the sum of its proper divisors (72735354922).

147278645361 is an frugal number, since it uses more digits than its factorization.

147278645361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85294 (or 42644 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 147278645361 in words is "one hundred forty-seven billion, two hundred seventy-eight million, six hundred forty-five thousand, three hundred sixty-one".