1201715143 has 2 divisors, whose sum is σ = 1201715144. Its totient is φ = 1201715142.

The previous prime is 1201715089. The next prime is 1201715147. The reversal of 1201715143 is 3415171021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201715143 - 2¹⁷ = 1201584071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201715147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600857571 + 600857572.

It is an arithmetic number, because the mean of its divisors is an integer number (600857572).

Almost surely, 2^1201715143 is an apocalyptic number.

1201715143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201715143 is an equidigital number, since it uses as much as digits as its factorization.

1201715143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1201715143 is about 34665.7632686776. The cubic root of 1201715143 is about 1063.1646091134.

Adding to 1201715143 its reverse (3415171021), we get a palindrome (4616886164).

The spelling of 1201715143 in words is "one billion, two hundred one million, seven hundred fifteen thousand, one hundred forty-three".