125223705 has 32 divisors (see below), whose sum is σ = 224726400. Its totient is φ = 66154176.

The previous prime is 125223701. The next prime is 125223719. The reversal of 125223705 is 507322521.

It is not a de Polignac number, because 125223705 - 2² = 125223701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125223701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10111 + ... + 18779.

It is an arithmetic number, because the mean of its divisors is an integer number (7022700).

Almost surely, 2^125223705 is an apocalyptic number.

125223705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125223705 is a deficient number, since it is larger than the sum of its proper divisors (99502695).

125223705 is a wasteful number, since it uses less digits than its factorization.

125223705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8790 (or 8784 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 125223705 is about 11190.3398071730. The cubic root of 125223705 is about 500.2980955761.

The spelling of 125223705 in words is "one hundred twenty-five million, two hundred twenty-three thousand, seven hundred five".