125117051 has 2 divisors, whose sum is σ = 125117052. Its totient is φ = 125117050.

The previous prime is 125117029. The next prime is 125117053. The reversal of 125117051 is 150711521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125117051 - 2¹⁴ = 125100667 is a prime.

Together with 125117053, 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 (125117053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62558525 + 62558526.

It is an arithmetic number, because the mean of its divisors is an integer number (62558526).

Almost surely, 2^125117051 is an apocalyptic number.

125117051 is a deficient number, since it is larger than the sum of its proper divisors (1).

125117051 is an equidigital number, since it uses as much as digits as its factorization.

125117051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 350, while the sum is 23.

The square root of 125117051 is about 11185.5733424800. The cubic root of 125117051 is about 500.1560193109.

Adding to 125117051 its reverse (150711521), we get a palindrome (275828572).

The spelling of 125117051 in words is "one hundred twenty-five million, one hundred seventeen thousand, fifty-one".