1185428201 has 2 divisors, whose sum is σ = 1185428202. Its totient is φ = 1185428200.

The previous prime is 1185428159. The next prime is 1185428243. The reversal of 1185428201 is 1028245811.

It is a balanced prime because it is at equal distance from previous prime (1185428159) and next prime (1185428243).

It can be written as a sum of positive squares in only one way, i.e., 846868201 + 338560000 = 29101^2 + 18400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1185428201 - 2⁶ = 1185428137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1185428281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592714100 + 592714101.

It is an arithmetic number, because the mean of its divisors is an integer number (592714101).

Almost surely, 2^1185428201 is an apocalyptic number.

It is an amenable number.

1185428201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1185428201 is an equidigital number, since it uses as much as digits as its factorization.

1185428201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 1185428201 is about 34430.0479378115. The cubic root of 1185428201 is about 1058.3396937032.

The spelling of 1185428201 in words is "one billion, one hundred eighty-five million, four hundred twenty-eight thousand, two hundred one".