9951541 has 2 divisors, whose sum is σ = 9951542. Its totient is φ = 9951540.

The previous prime is 9951523. The next prime is 9951547. The reversal of 9951541 is 1451599.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 60516 = 3145^2 + 246^2 .

It is a cyclic number.

It is not a de Polignac number, because 9951541 - 2⁷ = 9951413 is a prime.

It is a super-3 number, since 3×9951541³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9951497 and 9951506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9951547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4975770 + 4975771.

It is an arithmetic number, because the mean of its divisors is an integer number (4975771).

Almost surely, 2^9951541 is an apocalyptic number.

It is an amenable number.

9951541 is a deficient number, since it is larger than the sum of its proper divisors (1).

9951541 is an equidigital number, since it uses as much as digits as its factorization.

9951541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 34.

The square root of 9951541 is about 3154.6063145819. The cubic root of 9951541 is about 215.0948995156.

The spelling of 9951541 in words is "nine million, nine hundred fifty-one thousand, five hundred forty-one".