125121454 has 16 divisors (see below), whose sum is σ = 191072736. Its totient is φ = 61437600.

The previous prime is 125121439. The next prime is 125121467. The reversal of 125121454 is 454121521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37744 + ... + 40924.

It is an arithmetic number, because the mean of its divisors is an integer number (11942046).

Almost surely, 2^125121454 is an apocalyptic number.

125121454 is a deficient number, since it is larger than the sum of its proper divisors (65951282).

125121454 is a wasteful number, since it uses less digits than its factorization.

125121454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531.

The product of its digits is 1600, while the sum is 25.

The square root of 125121454 is about 11185.7701567661. The cubic root of 125121454 is about 500.1618862467.

Adding to 125121454 its reverse (454121521), we get a palindrome (579242975).

The spelling of 125121454 in words is "one hundred twenty-five million, one hundred twenty-one thousand, four hundred fifty-four".