125243051 has 2 divisors, whose sum is σ = 125243052. Its totient is φ = 125243050.

The previous prime is 125243023. The next prime is 125243087. The reversal of 125243051 is 150342521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125243051 - 2¹⁸ = 124980907 is a prime.

It is not a weakly prime, because it can be changed into another prime (125243021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62621525 + 62621526.

It is an arithmetic number, because the mean of its divisors is an integer number (62621526).

Almost surely, 2^125243051 is an apocalyptic number.

125243051 is a deficient number, since it is larger than the sum of its proper divisors (1).

125243051 is an equidigital number, since it uses as much as digits as its factorization.

125243051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125243051 is about 11191.2041800693. The cubic root of 125243051 is about 500.3238581865.

Adding to 125243051 its reverse (150342521), we get a palindrome (275585572).

The spelling of 125243051 in words is "one hundred twenty-five million, two hundred forty-three thousand, fifty-one".