200507961 has 4 divisors (see below), whose sum is σ = 267343952. Its totient is φ = 133671972.

The previous prime is 200507941. The next prime is 200507971. The reversal of 200507961 is 169705002.

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 not a de Polignac number, because 200507961 - 2⁵ = 200507929 is a prime.

It is a super-3 number, since 3×200507961³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200507941) 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, 33417991 + ... + 33417996.

It is an arithmetic number, because the mean of its divisors is an integer number (66835988).

Almost surely, 2^200507961 is an apocalyptic number.

It is an amenable number.

200507961 is a deficient number, since it is larger than the sum of its proper divisors (66835991).

200507961 is an equidigital number, since it uses as much as digits as its factorization.

200507961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66835990.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 200507961 is about 14160.0833683986. The cubic root of 200507961 is about 585.2982247423.

The spelling of 200507961 in words is "two hundred million, five hundred seven thousand, nine hundred sixty-one".