207149379 has 4 divisors (see below), whose sum is σ = 276199176. Its totient is φ = 138099584.

The previous prime is 207149363. The next prime is 207149389. The reversal of 207149379 is 973941702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 207149379 - 2⁴ = 207149363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 207149379.

It is not an unprimeable number, because it can be changed into a prime (207149309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34524894 + ... + 34524899.

It is an arithmetic number, because the mean of its divisors is an integer number (69049794).

Almost surely, 2^207149379 is an apocalyptic number.

207149379 is a deficient number, since it is larger than the sum of its proper divisors (69049797).

207149379 is an equidigital number, since it uses as much as digits as its factorization.

207149379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69049796.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 207149379 is about 14392.6849128299. The cubic root of 207149379 is about 591.6904302387.

The spelling of 207149379 in words is "two hundred seven million, one hundred forty-nine thousand, three hundred seventy-nine".