125235611 has 2 divisors, whose sum is σ = 125235612. Its totient is φ = 125235610.

The previous prime is 125235599. The next prime is 125235613. The reversal of 125235611 is 116532521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125235611 - 2⁶ = 125235547 is a prime.

It is a super-3 number, since 3×125235611³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

Together with 125235613, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125235613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62617805 + 62617806.

It is an arithmetic number, because the mean of its divisors is an integer number (62617806).

Almost surely, 2^125235611 is an apocalyptic number.

125235611 is a deficient number, since it is larger than the sum of its proper divisors (1).

125235611 is an equidigital number, since it uses as much as digits as its factorization.

125235611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 125235611 is about 11190.8717712250. The cubic root of 125235611 is about 500.3139508285.

It can be divided in two parts, 1252 and 35611, that added together give a palindrome (36863).

The spelling of 125235611 in words is "one hundred twenty-five million, two hundred thirty-five thousand, six hundred eleven".