125375540 has 24 divisors (see below), whose sum is σ = 269712072. Its totient is φ = 48926720.

The previous prime is 125375539. The next prime is 125375633. The reversal of 125375540 is 45573521.

It can be written as a sum of positive squares in 4 ways, for example, as 21049744 + 104325796 = 4588^2 + 10214^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125375497 and 125375506.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 75629 + ... + 77268.

It is an arithmetic number, because the mean of its divisors is an integer number (11238003).

Almost surely, 2^125375540 is an apocalyptic number.

125375540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125375540 is an abundant number, since it is smaller than the sum of its proper divisors (144336532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125375540 is a wasteful number, since it uses less digits than its factorization.

125375540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152947 (or 152945 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 125375540 is about 11197.1219516445. The cubic root of 125375540 is about 500.5002193942.

The spelling of 125375540 in words is "one hundred twenty-five million, three hundred seventy-five thousand, five hundred forty".