125456911 has 2 divisors, whose sum is σ = 125456912. Its totient is φ = 125456910.

The previous prime is 125456873. The next prime is 125456917. The reversal of 125456911 is 119654521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125456911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125456917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62728455 + 62728456.

It is an arithmetic number, because the mean of its divisors is an integer number (62728456).

Almost surely, 2^125456911 is an apocalyptic number.

125456911 is a deficient number, since it is larger than the sum of its proper divisors (1).

125456911 is an equidigital number, since it uses as much as digits as its factorization.

125456911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 34.

The square root of 125456911 is about 11200.7549299143. The cubic root of 125456911 is about 500.6084738854.

The spelling of 125456911 in words is "one hundred twenty-five million, four hundred fifty-six thousand, nine hundred eleven".