125321611 has 2 divisors, whose sum is σ = 125321612. Its totient is φ = 125321610.

The previous prime is 125321597. The next prime is 125321629. The reversal of 125321611 is 116123521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125321611 - 2⁵ = 125321579 is a prime.

It is not a weakly prime, because it can be changed into another prime (125321111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62660805 + 62660806.

It is an arithmetic number, because the mean of its divisors is an integer number (62660806).

Almost surely, 2^125321611 is an apocalyptic number.

125321611 is a deficient number, since it is larger than the sum of its proper divisors (1).

125321611 is an equidigital number, since it uses as much as digits as its factorization.

125321611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 125321611 is about 11194.7135291619. The cubic root of 125321611 is about 500.4284474274.

The spelling of 125321611 in words is "one hundred twenty-five million, three hundred twenty-one thousand, six hundred eleven".