207057121 has 8 divisors (see below), whose sum is σ = 208744704. Its totient is φ = 205375200.

The previous prime is 207057113. The next prime is 207057131. The reversal of 207057121 is 121750702.

It is a happy number.

207057121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 207057121 - 2³ = 207057113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207057131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99336 + ... + 101398.

It is an arithmetic number, because the mean of its divisors is an integer number (26093088).

Almost surely, 2^207057121 is an apocalyptic number.

It is an amenable number.

207057121 is a deficient number, since it is larger than the sum of its proper divisors (1687583).

207057121 is a wasteful number, since it uses less digits than its factorization.

207057121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 207057121 is about 14389.4795249863. The cubic root of 207057121 is about 591.6025769192.

The spelling of 207057121 in words is "two hundred seven million, fifty-seven thousand, one hundred twenty-one".