125213903 has 2 divisors, whose sum is σ = 125213904. Its totient is φ = 125213902.

The previous prime is 125213849. The next prime is 125213911. The reversal of 125213903 is 309312521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125213903 - 2⁶ = 125213839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125213923) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62606951 + 62606952.

It is an arithmetic number, because the mean of its divisors is an integer number (62606952).

Almost surely, 2^125213903 is an apocalyptic number.

125213903 is a deficient number, since it is larger than the sum of its proper divisors (1).

125213903 is an equidigital number, since it uses as much as digits as its factorization.

125213903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 125213903 is about 11189.9018315622. The cubic root of 125213903 is about 500.2850414718.

The spelling of 125213903 in words is "one hundred twenty-five million, two hundred thirteen thousand, nine hundred three".