125802011 has 2 divisors, whose sum is σ = 125802012. Its totient is φ = 125802010.

The previous prime is 125802007. The next prime is 125802013. The reversal of 125802011 is 110208521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125802011 - 2² = 125802007 is a prime.

It is a super-2 number, since 2×125802011² = 31652291943288242, which contains 22 as substring.

Together with 125802013, 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 (125802013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62901005 + 62901006.

It is an arithmetic number, because the mean of its divisors is an integer number (62901006).

Almost surely, 2^125802011 is an apocalyptic number.

125802011 is a deficient number, since it is larger than the sum of its proper divisors (1).

125802011 is an equidigital number, since it uses as much as digits as its factorization.

125802011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 125802011 is about 11216.1495621269. The cubic root of 125802011 is about 501.0670691070.

The spelling of 125802011 in words is "one hundred twenty-five million, eight hundred two thousand, eleven".