180740747 has 4 divisors (see below), whose sum is σ = 197171736. Its totient is φ = 164309760.

The previous prime is 180740737. The next prime is 180740761. The reversal of 180740747 is 747047081.

180740747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747047081 = 11 ⋅67913371.

It is a cyclic number.

It is not a de Polignac number, because 180740747 - 2⁶ = 180740683 is a prime.

It is a super-2 number, since 2×180740747² = 65334435252236018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 180740747.

It is not an unprimeable number, because it can be changed into a prime (180740737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8215478 + ... + 8215499.

It is an arithmetic number, because the mean of its divisors is an integer number (49292934).

Almost surely, 2^180740747 is an apocalyptic number.

180740747 is a deficient number, since it is larger than the sum of its proper divisors (16430989).

180740747 is a wasteful number, since it uses less digits than its factorization.

180740747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16430988.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 180740747 is about 13443.9855325718. The cubic root of 180740747 is about 565.3950790926.

The spelling of 180740747 in words is "one hundred eighty million, seven hundred forty thousand, seven hundred forty-seven".