125653111 has 2 divisors, whose sum is σ = 125653112. Its totient is φ = 125653110.

The previous prime is 125653109. The next prime is 125653123. The reversal of 125653111 is 111356521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125653111 - 2¹ = 125653109 is a prime.

Together with 125653109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125603111) by changing a digit.

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 as a sum of consecutive naturals, namely, 62826555 + 62826556.

It is an arithmetic number, because the mean of its divisors is an integer number (62826556).

Almost surely, 2^125653111 is an apocalyptic number.

125653111 is a deficient number, since it is larger than the sum of its proper divisors (1).

125653111 is an equidigital number, since it uses as much as digits as its factorization.

125653111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 25.

The square root of 125653111 is about 11209.5098465544. The cubic root of 125653111 is about 500.8693024174.

The spelling of 125653111 in words is "one hundred twenty-five million, six hundred fifty-three thousand, one hundred eleven".