125188403 has 2 divisors, whose sum is σ = 125188404. Its totient is φ = 125188402.

The previous prime is 125188387. The next prime is 125188421. The reversal of 125188403 is 304881521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125188403 - 2⁴ = 125188387 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125188403.

It is not a weakly prime, because it can be changed into another prime (125188433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62594201 + 62594202.

It is an arithmetic number, because the mean of its divisors is an integer number (62594202).

Almost surely, 2^125188403 is an apocalyptic number.

125188403 is a deficient number, since it is larger than the sum of its proper divisors (1).

125188403 is an equidigital number, since it uses as much as digits as its factorization.

125188403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 125188403 is about 11188.7623533615. The cubic root of 125188403 is about 500.2510778987.

The spelling of 125188403 in words is "one hundred twenty-five million, one hundred eighty-eight thousand, four hundred three".