297069139 has 4 divisors (see below), whose sum is σ = 297361120. Its totient is φ = 296777160.

The previous prime is 297069133. The next prime is 297069167. The reversal of 297069139 is 931960792.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 297069139 - 2³ = 297069131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (297069131) 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, 144459 + ... + 146500.

It is an arithmetic number, because the mean of its divisors is an integer number (74340280).

Almost surely, 2^297069139 is an apocalyptic number.

297069139 is a deficient number, since it is larger than the sum of its proper divisors (291981).

297069139 is a wasteful number, since it uses less digits than its factorization.

297069139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291980.

The product of its (nonzero) digits is 183708, while the sum is 46.

The square root of 297069139 is about 17235.6937487297. The cubic root of 297069139 is about 667.2457954635.

The spelling of 297069139 in words is "two hundred ninety-seven million, sixty-nine thousand, one hundred thirty-nine".