125478523 has 2 divisors, whose sum is σ = 125478524. Its totient is φ = 125478522.

The previous prime is 125478517. The next prime is 125478539. The reversal of 125478523 is 325874521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125478523 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (125478503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62739261 + 62739262.

It is an arithmetic number, because the mean of its divisors is an integer number (62739262).

Almost surely, 2^125478523 is an apocalyptic number.

125478523 is a deficient number, since it is larger than the sum of its proper divisors (1).

125478523 is an equidigital number, since it uses as much as digits as its factorization.

125478523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 125478523 is about 11201.7196447688. The cubic root of 125478523 is about 500.6372182275.

The spelling of 125478523 in words is "one hundred twenty-five million, four hundred seventy-eight thousand, five hundred twenty-three".