9409548901 has 2 divisors, whose sum is σ = 9409548902. Its totient is φ = 9409548900.

The previous prime is 9409548899. The next prime is 9409548949. The reversal of 9409548901 is 1098459049.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9399302500 + 10246401 = 96950^2 + 3201^2 .

It is an emirp because it is prime and its reverse (1098459049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9409548901 - 2¹ = 9409548899 is a prime.

It is a super-2 number, since 2×9409548901² (a number of 21 digits) contains 22 as substring.

Together with 9409548899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9409548971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4704774450 + 4704774451.

It is an arithmetic number, because the mean of its divisors is an integer number (4704774451).

Almost surely, 2^9409548901 is an apocalyptic number.

It is an amenable number.

9409548901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9409548901 is an equidigital number, since it uses as much as digits as its factorization.

9409548901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 9409548901 is about 97002.8293453340. The cubic root of 9409548901 is about 2111.1686809815.

The spelling of 9409548901 in words is "nine billion, four hundred nine million, five hundred forty-eight thousand, nine hundred one".