207139037 has 4 divisors (see below), whose sum is σ = 236730336. Its totient is φ = 177547740.

The previous prime is 207139019. The next prime is 207139043. The reversal of 207139037 is 730931702.

207139037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 207139037 - 2²² = 202944733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 207138994 and 207139012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207139637) 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, 14795639 + ... + 14795652.

It is an arithmetic number, because the mean of its divisors is an integer number (59182584).

Almost surely, 2^207139037 is an apocalyptic number.

It is an amenable number.

207139037 is a deficient number, since it is larger than the sum of its proper divisors (29591299).

207139037 is an equidigital number, since it uses as much as digits as its factorization.

207139037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29591298.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 207139037 is about 14392.3256286119. The cubic root of 207139037 is about 591.6805832958.

The spelling of 207139037 in words is "two hundred seven million, one hundred thirty-nine thousand, thirty-seven".