207149 has 4 divisors (see below), whose sum is σ = 210720. Its totient is φ = 203580.

The previous prime is 207139. The next prime is 207169. The reversal of 207149 is 941702.

207149 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 207149 - 2¹⁶ = 141613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207139) 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, 1697 + ... + 1814.

It is an arithmetic number, because the mean of its divisors is an integer number (52680).

2²⁰⁷¹⁴⁹ is an apocalyptic number.

It is an amenable number.

207149 is a deficient number, since it is larger than the sum of its proper divisors (3571).

207149 is an equidigital number, since it uses as much as digits as its factorization.

207149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 207149 is about 455.1362433382. The cubic root of 207149 is about 59.1690069387.

The spelling of 207149 in words is "two hundred seven thousand, one hundred forty-nine".