125751503 has 2 divisors, whose sum is σ = 125751504. Its totient is φ = 125751502.

The previous prime is 125751487. The next prime is 125751517. The reversal of 125751503 is 305157521.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125751503 - 2⁴ = 125751487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125751553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62875751 + 62875752.

It is an arithmetic number, because the mean of its divisors is an integer number (62875752).

Almost surely, 2^125751503 is an apocalyptic number.

125751503 is a deficient number, since it is larger than the sum of its proper divisors (1).

125751503 is an equidigital number, since it uses as much as digits as its factorization.

125751503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 125751503 is about 11213.8977612604. The cubic root of 125751503 is about 501.0000026560. Note that the first 5 decimals are identical.

The spelling of 125751503 in words is "one hundred twenty-five million, seven hundred fifty-one thousand, five hundred three".