1201215047 has 2 divisors, whose sum is σ = 1201215048. Its totient is φ = 1201215046.

The previous prime is 1201215031. The next prime is 1201215091. The reversal of 1201215047 is 7405121021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1201215047 - 2⁴ = 1201215031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201215347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600607523 + 600607524.

It is an arithmetic number, because the mean of its divisors is an integer number (600607524).

Almost surely, 2^1201215047 is an apocalyptic number.

1201215047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201215047 is an equidigital number, since it uses as much as digits as its factorization.

1201215047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 1201215047 is about 34658.5494070366. The cubic root of 1201215047 is about 1063.0171093385.

Adding to 1201215047 its reverse (7405121021), we get a palindrome (8606336068).

The spelling of 1201215047 in words is "one billion, two hundred one million, two hundred fifteen thousand, forty-seven".