125007540 has 96 divisors (see below), whose sum is σ = 401608704. Its totient is φ = 28460160.

The previous prime is 125007539. The next prime is 125007541. The reversal of 125007540 is 45700521.

It is an interprime number because it is at equal distance from previous prime (125007539) and next prime (125007541).

It is a self number, because there is not a number n which added to its sum of digits gives 125007540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125007541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153735 + ... + 154545.

It is an arithmetic number, because the mean of its divisors is an integer number (4183424).

Almost surely, 2^125007540 is an apocalyptic number.

125007540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125007540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200804352).

125007540 is an abundant number, since it is smaller than the sum of its proper divisors (276601164).

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

125007540 is a wasteful number, since it uses less digits than its factorization.

125007540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 125007540 is about 11180.6770814651. The cubic root of 125007540 is about 500.0100531312.

The spelling of 125007540 in words is "one hundred twenty-five million, seven thousand, five hundred forty".