223125987 has 16 divisors (see below), whose sum is σ = 357896960. Its totient is φ = 120789792.

The previous prime is 223125871. The next prime is 223126019. The reversal of 223125987 is 789521322.

223125987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223125987 - 2¹¹ = 223123939 is a prime.

It is a super-3 number, since 3×223125987³ (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 (223120987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279208 + ... + 280005.

It is an arithmetic number, because the mean of its divisors is an integer number (22368560).

Almost surely, 2^223125987 is an apocalyptic number.

223125987 is a deficient number, since it is larger than the sum of its proper divisors (134770973).

223125987 is a wasteful number, since it uses less digits than its factorization.

223125987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559242.

The product of its digits is 60480, while the sum is 39.

The square root of 223125987 is about 14937.4022841992. The cubic root of 223125987 is about 606.5268784245.

The spelling of 223125987 in words is "two hundred twenty-three million, one hundred twenty-five thousand, nine hundred eighty-seven".