1213553147 has 2 divisors, whose sum is σ = 1213553148. Its totient is φ = 1213553146.

The previous prime is 1213553101. The next prime is 1213553153. The reversal of 1213553147 is 7413553121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1213553147 - 2⁶ = 1213553083 is a prime.

It is a super-2 number, since 2×1213553147² = 2945422481187207218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213550147) 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, 606776573 + 606776574.

It is an arithmetic number, because the mean of its divisors is an integer number (606776574).

Almost surely, 2^1213553147 is an apocalyptic number.

1213553147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213553147 is an equidigital number, since it uses as much as digits as its factorization.

1213553147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 1213553147 is about 34836.0897202886. The cubic root of 1213553147 is about 1066.6442591756.

The spelling of 1213553147 in words is "one billion, two hundred thirteen million, five hundred fifty-three thousand, one hundred forty-seven".