1201330187 has 2 divisors, whose sum is σ = 1201330188. Its totient is φ = 1201330186.

The previous prime is 1201330147. The next prime is 1201330219. The reversal of 1201330187 is 7810331021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201330187 - 2¹⁰ = 1201329163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201330147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600665093 + 600665094.

It is an arithmetic number, because the mean of its divisors is an integer number (600665094).

Almost surely, 2^1201330187 is an apocalyptic number.

1201330187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201330187 is an equidigital number, since it uses as much as digits as its factorization.

1201330187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1201330187 is about 34660.2104292516. The cubic root of 1201330187 is about 1063.0510726936.

The spelling of 1201330187 in words is "one billion, two hundred one million, three hundred thirty thousand, one hundred eighty-seven".