207439081 has 8 divisors (see below), whose sum is σ = 210185280. Its totient is φ = 204708048.

The previous prime is 207439079. The next prime is 207439129. The reversal of 207439081 is 180934702.

207439081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 207439081 - 2¹ = 207439079 is a prime.

It is a super-2 number, since 2×207439081² = 86061944652249122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207439031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25180 + ... + 32386.

It is an arithmetic number, because the mean of its divisors is an integer number (26273160).

Almost surely, 2^207439081 is an apocalyptic number.

It is an amenable number.

207439081 is a deficient number, since it is larger than the sum of its proper divisors (2746199).

207439081 is a wasteful number, since it uses less digits than its factorization.

207439081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 207439081 is about 14402.7456063072. The cubic root of 207439081 is about 591.9661315312.

The spelling of 207439081 in words is "two hundred seven million, four hundred thirty-nine thousand, eighty-one".