125045155 has 4 divisors (see below), whose sum is σ = 150054192. Its totient is φ = 100036120.

The previous prime is 125045143. The next prime is 125045177. The reversal of 125045155 is 551540521.

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

It is not a de Polignac number, because 125045155 - 2⁷ = 125045027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12504511 + ... + 12504520.

It is an arithmetic number, because the mean of its divisors is an integer number (37513548).

Almost surely, 2^125045155 is an apocalyptic number.

125045155 is a deficient number, since it is larger than the sum of its proper divisors (25009037).

125045155 is an equidigital number, since it uses as much as digits as its factorization.

125045155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25009036.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 125045155 is about 11182.3590981510. The cubic root of 125045155 is about 500.0601994184.

Adding to 125045155 its reverse (551540521), we get a palindrome (676585676).

The spelling of 125045155 in words is "one hundred twenty-five million, forty-five thousand, one hundred fifty-five".