125123453 has 8 divisors (see below), whose sum is σ = 153998208. Its totient is φ = 98998704.

The previous prime is 125123443. The next prime is 125123477. The reversal of 125123453 is 354321521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125123453 - 2⁴ = 125123437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125123443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687401 + ... + 687582.

It is an arithmetic number, because the mean of its divisors is an integer number (19249776).

Almost surely, 2^125123453 is an apocalyptic number.

125123453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

125123453 is a deficient number, since it is larger than the sum of its proper divisors (28874755).

125123453 is a wasteful number, since it uses less digits than its factorization.

125123453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375003.

The product of its digits is 3600, while the sum is 26.

The square root of 125123453 is about 11185.8595110076. The cubic root of 125123453 is about 500.1645498408.

Adding to 125123453 its reverse (354321521), we get a palindrome (479444974).

The spelling of 125123453 in words is "one hundred twenty-five million, one hundred twenty-three thousand, four hundred fifty-three".