125245123 has 4 divisors (see below), whose sum is σ = 125294488. Its totient is φ = 125195760.

The previous prime is 125245117. The next prime is 125245129. The reversal of 125245123 is 321542521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (125245117) and next prime (125245129).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125245123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125245129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20658 + ... + 26023.

It is an arithmetic number, because the mean of its divisors is an integer number (31323622).

Almost surely, 2^125245123 is an apocalyptic number.

125245123 is a deficient number, since it is larger than the sum of its proper divisors (49365).

125245123 is an equidigital number, since it uses as much as digits as its factorization.

125245123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49364.

The product of its digits is 2400, while the sum is 25.

The square root of 125245123 is about 11191.2967523875. The cubic root of 125245123 is about 500.3266172625.

Adding to 125245123 its reverse (321542521), we get a palindrome (446787644).

The spelling of 125245123 in words is "one hundred twenty-five million, two hundred forty-five thousand, one hundred twenty-three".