125251105 has 48 divisors (see below), whose sum is σ = 184491216. Its totient is φ = 81285120.

The previous prime is 125251081. The next prime is 125251141. The reversal of 125251105 is 501152521.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7376656 + 117874449 = 2716^2 + 10857^2 .

It is not a de Polignac number, because 125251105 - 2⁷ = 125250977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 371497 + ... + 371833.

It is an arithmetic number, because the mean of its divisors is an integer number (3843567).

Almost surely, 2^125251105 is an apocalyptic number.

It is an amenable number.

125251105 is a deficient number, since it is larger than the sum of its proper divisors (59240111).

125251105 is a wasteful number, since it uses less digits than its factorization.

125251105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 125251105 is about 11191.5640104500. The cubic root of 125251105 is about 500.3345827255.

The spelling of 125251105 in words is "one hundred twenty-five million, two hundred fifty-one thousand, one hundred five".