125444121 has 32 divisors (see below), whose sum is σ = 187595136. Its totient is φ = 73920000.

The previous prime is 125444119. The next prime is 125444131. The reversal of 125444121 is 121444521.

It is not a de Polignac number, because 125444121 - 2¹ = 125444119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125444091 and 125444100.

It is not an unprimeable number, because it can be changed into a prime (125444101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203005 + ... + 203621.

It is an arithmetic number, because the mean of its divisors is an integer number (5862348).

Almost surely, 2^125444121 is an apocalyptic number.

125444121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125444121 is a deficient number, since it is larger than the sum of its proper divisors (62151015).

125444121 is a wasteful number, since it uses less digits than its factorization.

125444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its digits is 1280, while the sum is 24.

The square root of 125444121 is about 11200.1839717033. The cubic root of 125444121 is about 500.5914614043.

Adding to 125444121 its reverse (121444521), we get a palindrome (246888642).

The spelling of 125444121 in words is "one hundred twenty-five million, four hundred forty-four thousand, one hundred twenty-one".