125222361 has 32 divisors (see below), whose sum is σ = 189911040. Its totient is φ = 72705600.

The previous prime is 125222359. The next prime is 125222371. The reversal of 125222361 is 163222521.

It is not a de Polignac number, because 125222361 - 2¹ = 125222359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125222341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110946 + ... + 112068.

It is an arithmetic number, because the mean of its divisors is an integer number (5934720).

Almost surely, 2^125222361 is an apocalyptic number.

125222361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125222361 is a deficient number, since it is larger than the sum of its proper divisors (64688679).

125222361 is a wasteful number, since it uses less digits than its factorization.

125222361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277.

The product of its digits is 1440, while the sum is 24.

The square root of 125222361 is about 11190.2797552161. The cubic root of 125222361 is about 500.2963057045.

Adding to 125222361 its reverse (163222521), we get a palindrome (288444882).

The spelling of 125222361 in words is "one hundred twenty-five million, two hundred twenty-two thousand, three hundred sixty-one".