9249999901 has 2 divisors, whose sum is σ = 9249999902. Its totient is φ = 9249999900.

The previous prime is 9249999893. The next prime is 9249999917. The reversal of 9249999901 is 1099999429.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8137844100 + 1112155801 = 90210^2 + 33349^2 .

It is an emirp because it is prime and its reverse (1099999429) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9249999901 - 2³ = 9249999893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9249999901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9249999961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4624999950 + 4624999951.

It is an arithmetic number, because the mean of its divisors is an integer number (4624999951).

Almost surely, 2^9249999901 is an apocalyptic number.

It is an amenable number.

9249999901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9249999901 is an equidigital number, since it uses as much as digits as its factorization.

9249999901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4251528, while the sum is 61.

The square root of 9249999901 is about 96176.9197936802. The cubic root of 9249999901 is about 2099.1682194153.

The spelling of 9249999901 in words is "nine billion, two hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred one".