9201139201 has 2 divisors, whose sum is σ = 9201139202. Its totient is φ = 9201139200.

The previous prime is 9201139151. The next prime is 9201139229. The reversal of 9201139201 is 1029311029.

It is an a-pointer prime, because the next prime (9201139229) can be obtained adding 9201139201 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5175363600 + 4025775601 = 71940^2 + 63449^2 .

It is a cyclic number.

It is not a de Polignac number, because 9201139201 - 2²¹ = 9199042049 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9201139201.

It is not a weakly prime, because it can be changed into another prime (9201139501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4600569600 + 4600569601.

It is an arithmetic number, because the mean of its divisors is an integer number (4600569601).

Almost surely, 2^9201139201 is an apocalyptic number.

It is an amenable number.

9201139201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9201139201 is an equidigital number, since it uses as much as digits as its factorization.

9201139201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 9201139201 is about 95922.5687781556. The cubic root of 9201139201 is about 2095.4655903815.

The spelling of 9201139201 in words is "nine billion, two hundred one million, one hundred thirty-nine thousand, two hundred one".