207139234 has 8 divisors (see below), whose sum is σ = 315085248. Its totient is φ = 102110820.

The previous prime is 207139201. The next prime is 207139243. The reversal of 207139234 is 432931702.

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

It is a junction number, because it is equal to n+sod(n) for n = 207139196 and 207139205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729222 + ... + 729505.

It is an arithmetic number, because the mean of its divisors is an integer number (39385656).

Almost surely, 2^207139234 is an apocalyptic number.

207139234 is a deficient number, since it is larger than the sum of its proper divisors (107946014).

207139234 is a wasteful number, since it uses less digits than its factorization.

207139234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458800.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 207139234 is about 14392.3324725355. The cubic root of 207139234 is about 591.6807708688.

The spelling of 207139234 in words is "two hundred seven million, one hundred thirty-nine thousand, two hundred thirty-four".