1155107201 has 2 divisors, whose sum is σ = 1155107202. Its totient is φ = 1155107200.

The previous prime is 1155107197. The next prime is 1155107231. The reversal of 1155107201 is 1027015511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1128892801 + 26214400 = 33599^2 + 5120^2 .

It is an emirp because it is prime and its reverse (1027015511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155107201 - 2² = 1155107197 is a prime.

It is not a weakly prime, because it can be changed into another prime (1155107231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577553600 + 577553601.

It is an arithmetic number, because the mean of its divisors is an integer number (577553601).

Almost surely, 2^1155107201 is an apocalyptic number.

It is an amenable number.

1155107201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155107201 is an equidigital number, since it uses as much as digits as its factorization.

1155107201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 350, while the sum is 23.

The square root of 1155107201 is about 33986.8680669461. The cubic root of 1155107201 is about 1049.2382081368.

The spelling of 1155107201 in words is "one billion, one hundred fifty-five million, one hundred seven thousand, two hundred one".