207352139 has 2 divisors, whose sum is σ = 207352140. Its totient is φ = 207352138.

The previous prime is 207352133. The next prime is 207352157. The reversal of 207352139 is 931253702.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207352139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (207352133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103676069 + 103676070.

It is an arithmetic number, because the mean of its divisors is an integer number (103676070).

Almost surely, 2^207352139 is an apocalyptic number.

207352139 is a deficient number, since it is larger than the sum of its proper divisors (1).

207352139 is an equidigital number, since it uses as much as digits as its factorization.

207352139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 207352139 is about 14399.7270460242. The cubic root of 207352139 is about 591.8834182336.

The spelling of 207352139 in words is "two hundred seven million, three hundred fifty-two thousand, one hundred thirty-nine".