207134985 has 16 divisors (see below), whose sum is σ = 331905600. Its totient is φ = 110308800.

The previous prime is 207134959. The next prime is 207135007. The reversal of 207134985 is 589431702.

It is not a de Polignac number, because 207134985 - 2⁷ = 207134857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666 + ... + 20364.

It is an arithmetic number, because the mean of its divisors is an integer number (20744100).

Almost surely, 2^207134985 is an apocalyptic number.

It is an amenable number.

207134985 is a deficient number, since it is larger than the sum of its proper divisors (124770615).

207134985 is a wasteful number, since it uses less digits than its factorization.

207134985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20408.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 207134985 is about 14392.1848584570. The cubic root of 207134985 is about 591.6767251701.

The spelling of 207134985 in words is "two hundred seven million, one hundred thirty-four thousand, nine hundred eighty-five".