125444155 has 4 divisors (see below), whose sum is σ = 150532992. Its totient is φ = 100355320.

The previous prime is 125444147. The next prime is 125444161. The reversal of 125444155 is 551444521.

It is a happy number.

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

It is not a de Polignac number, because 125444155 - 2³ = 125444147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12544411 + ... + 12544420.

It is an arithmetic number, because the mean of its divisors is an integer number (37633248).

Almost surely, 2^125444155 is an apocalyptic number.

125444155 is a deficient number, since it is larger than the sum of its proper divisors (25088837).

125444155 is an equidigital number, since it uses as much as digits as its factorization.

125444155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25088836.

The product of its digits is 16000, while the sum is 31.

The square root of 125444155 is about 11200.1854895354. The cubic root of 125444155 is about 500.5915066305.

Adding to 125444155 its reverse (551444521), we get a palindrome (676888676).

The spelling of 125444155 in words is "one hundred twenty-five million, four hundred forty-four thousand, one hundred fifty-five".