10207561 has 16 divisors (see below), whose sum is σ = 13112064. Its totient is φ = 7723584.

The previous prime is 10207553. The next prime is 10207573. The reversal of 10207561 is 16570201.

It is not a de Polignac number, because 10207561 - 2³ = 10207553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10207501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346 + ... + 4531.

It is an arithmetic number, because the mean of its divisors is an integer number (819504).

Almost surely, 2^10207561 is an apocalyptic number.

It is an amenable number.

10207561 is a deficient number, since it is larger than the sum of its proper divisors (2904503).

10207561 is a wasteful number, since it uses less digits than its factorization.

10207561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 10207561 is about 3194.9273857163. The cubic root of 10207561 is about 216.9238620952.

Adding to 10207561 its reverse (16570201), we get a palindrome (26777762).

The spelling of 10207561 in words is "ten million, two hundred seven thousand, five hundred sixty-one".