125222665 has 16 divisors (see below), whose sum is σ = 156074688. Its totient is φ = 96376896.

The previous prime is 125222641. The next prime is 125222677. The reversal of 125222665 is 566222521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125222665 - 2¹³ = 125214473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10059 + ... + 18751.

It is an arithmetic number, because the mean of its divisors is an integer number (9754668).

Almost surely, 2^125222665 is an apocalyptic number.

It is an amenable number.

125222665 is a deficient number, since it is larger than the sum of its proper divisors (30852023).

125222665 is an equidigital number, since it uses as much as digits as its factorization.

125222665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808.

The product of its digits is 14400, while the sum is 31.

The square root of 125222665 is about 11190.2933384250. The cubic root of 125222665 is about 500.2967105575.

The spelling of 125222665 in words is "one hundred twenty-five million, two hundred twenty-two thousand, six hundred sixty-five".