1213254047 has 2 divisors, whose sum is σ = 1213254048. Its totient is φ = 1213254046.

The previous prime is 1213254019. The next prime is 1213254059. The reversal of 1213254047 is 7404523121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213254047 - 2⁶ = 1213253983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213254547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606627023 + 606627024.

It is an arithmetic number, because the mean of its divisors is an integer number (606627024).

Almost surely, 2^1213254047 is an apocalyptic number.

1213254047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213254047 is an equidigital number, since it uses as much as digits as its factorization.

1213254047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1213254047 is about 34831.7964940082. The cubic root of 1213254047 is about 1066.5566213404.

Adding to 1213254047 its reverse (7404523121), we get a palindrome (8617777168).

The spelling of 1213254047 in words is "one billion, two hundred thirteen million, two hundred fifty-four thousand, forty-seven".