126730525 has 24 divisors (see below), whose sum is σ = 161150400. Its totient is φ = 98832000.

The previous prime is 126730523. The next prime is 126730543. The reversal of 126730525 is 525037621.

It is not a de Polignac number, because 126730525 - 2¹ = 126730523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126730523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 222441 + ... + 223009.

It is an arithmetic number, because the mean of its divisors is an integer number (6714600).

Almost surely, 2^126730525 is an apocalyptic number.

It is an amenable number.

126730525 is a deficient number, since it is larger than the sum of its proper divisors (34419875).

126730525 is a wasteful number, since it uses less digits than its factorization.

126730525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 126730525 is about 11257.4653008570. The cubic root of 126730525 is about 502.2967999318.

The spelling of 126730525 in words is "one hundred twenty-six million, seven hundred thirty thousand, five hundred twenty-five".