9601531 has 2 divisors, whose sum is σ = 9601532. Its totient is φ = 9601530.

The previous prime is 9601519. The next prime is 9601547. The reversal of 9601531 is 1351069.

9601531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1351069) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9601531 - 2⁵ = 9601499 is a prime.

It is a super-2 number, since 2×9601531² = 184378795087922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9601496 and 9601505.

It is not a weakly prime, because it can be changed into another prime (9601561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4800765 + 4800766.

It is an arithmetic number, because the mean of its divisors is an integer number (4800766).

Almost surely, 2^9601531 is an apocalyptic number.

9601531 is a deficient number, since it is larger than the sum of its proper divisors (1).

9601531 is an equidigital number, since it uses as much as digits as its factorization.

9601531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 9601531 is about 3098.6337311790. The cubic root of 9601531 is about 212.5430113628.

The spelling of 9601531 in words is "nine million, six hundred one thousand, five hundred thirty-one".