1145831201 has 2 divisors, whose sum is σ = 1145831202. Its totient is φ = 1145831200.

The previous prime is 1145831107. The next prime is 1145831237. The reversal of 1145831201 is 1021385411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 947162176 + 198669025 = 30776^2 + 14095^2 .

It is an emirp because it is prime and its reverse (1021385411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145831201 - 2¹⁰ = 1145830177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1145831251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572915600 + 572915601.

It is an arithmetic number, because the mean of its divisors is an integer number (572915601).

Almost surely, 2^1145831201 is an apocalyptic number.

It is an amenable number.

1145831201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145831201 is an equidigital number, since it uses as much as digits as its factorization.

1145831201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 1145831201 is about 33850.1285226511. The cubic root of 1145831201 is about 1046.4220472577.

The spelling of 1145831201 in words is "one billion, one hundred forty-five million, eight hundred thirty-one thousand, two hundred one".