130525421 has 16 divisors (see below), whose sum is σ = 150407040. Its totient is φ = 112259520.

The previous prime is 130525349. The next prime is 130525471. The reversal of 130525421 is 124525031.

It is a de Polignac number, because none of the positive numbers 2^k-130525421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130525471) 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 15 ways as a sum of consecutive naturals, for example, 10736 + ... + 19398.

It is an arithmetic number, because the mean of its divisors is an integer number (9400440).

Almost surely, 2^130525421 is an apocalyptic number.

It is an amenable number.

130525421 is a deficient number, since it is larger than the sum of its proper divisors (19881619).

130525421 is a wasteful number, since it uses less digits than its factorization.

130525421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8756.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 130525421 is about 11424.7722515593. The cubic root of 130525421 is about 507.2612655683.

The spelling of 130525421 in words is "one hundred thirty million, five hundred twenty-five thousand, four hundred twenty-one".