125371505 has 16 divisors (see below), whose sum is σ = 179414784. Its totient is φ = 82230720.

The previous prime is 125371501. The next prime is 125371511. The reversal of 125371505 is 505173521.

It is a happy number.

It is not a de Polignac number, because 125371505 - 2² = 125371501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125371501) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 77066 + ... + 78675.

It is an arithmetic number, because the mean of its divisors is an integer number (11213424).

Almost surely, 2^125371505 is an apocalyptic number.

It is an amenable number.

125371505 is a deficient number, since it is larger than the sum of its proper divisors (54043279).

125371505 is a wasteful number, since it uses less digits than its factorization.

125371505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155776.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 125371505 is about 11196.9417699656. The cubic root of 125371505 is about 500.4948500852.

The spelling of 125371505 in words is "one hundred twenty-five million, three hundred seventy-one thousand, five hundred five".