9875131501 has 2 divisors, whose sum is σ = 9875131502. Its totient is φ = 9875131500.

The previous prime is 9875131493. The next prime is 9875131531. The reversal of 9875131501 is 1051315789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9183388900 + 691742601 = 95830^2 + 26301^2 .

It is an emirp because it is prime and its reverse (1051315789) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9875131501 - 2³ = 9875131493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9875131531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4937565750 + 4937565751.

It is an arithmetic number, because the mean of its divisors is an integer number (4937565751).

Almost surely, 2^9875131501 is an apocalyptic number.

It is an amenable number.

9875131501 is a deficient number, since it is larger than the sum of its proper divisors (1).

9875131501 is an equidigital number, since it uses as much as digits as its factorization.

9875131501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 40.

The square root of 9875131501 is about 99373.6962228939. The cubic root of 9875131501 is about 2145.4297366743.

It can be divided in two parts, 9875 and 131501, that added together give a square (141376 = 376²).

The spelling of 9875131501 in words is "nine billion, eight hundred seventy-five million, one hundred thirty-one thousand, five hundred one".