125401105 has 4 divisors (see below), whose sum is σ = 150481332. Its totient is φ = 100320880.

The previous prime is 125401097. The next prime is 125401139. The reversal of 125401105 is 501104521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501104521 = 13913 ⋅36017.

It can be written as a sum of positive squares in 2 ways, for example, as 14077504 + 111323601 = 3752^2 + 10551^2 .

It is not a de Polignac number, because 125401105 - 2³ = 125401097 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, 12540106 + ... + 12540115.

It is an arithmetic number, because the mean of its divisors is an integer number (37620333).

Almost surely, 2^125401105 is an apocalyptic number.

It is an amenable number.

125401105 is a deficient number, since it is larger than the sum of its proper divisors (25080227).

125401105 is an equidigital number, since it uses as much as digits as its factorization.

125401105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25080226.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 125401105 is about 11198.2634814510. The cubic root of 125401105 is about 500.5342356479.

Adding to 125401105 its reverse (501104521), we get a palindrome (626505626).

The spelling of 125401105 in words is "one hundred twenty-five million, four hundred one thousand, one hundred five".