139180473 has 6 divisors (see below), whose sum is σ = 201038474. Its totient is φ = 92786976.

The previous prime is 139180471. The next prime is 139180499. The reversal of 139180473 is 374081931.

It is a happy number.

139180473 is a `hidden beast` number, since 1 + 3 + 9 + 180 + 473 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108743184 + 30437289 = 10428^2 + 5517^2 .

It is not a de Polignac number, because 139180473 - 2¹ = 139180471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139180471) 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, 7732240 + ... + 7732257.

Almost surely, 2^139180473 is an apocalyptic number.

It is an amenable number.

139180473 is a deficient number, since it is larger than the sum of its proper divisors (61858001).

139180473 is a wasteful number, since it uses less digits than its factorization.

139180473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15464503 (or 15464500 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 139180473 is about 11797.4773998512. The cubic root of 139180473 is about 518.2342388586.

The spelling of 139180473 in words is "one hundred thirty-nine million, one hundred eighty thousand, four hundred seventy-three".