1229351197 has 2 divisors, whose sum is σ = 1229351198. Its totient is φ = 1229351196.

The previous prime is 1229351177. The next prime is 1229351269. The reversal of 1229351197 is 7911539221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221432601 + 7918596 = 34949^2 + 2814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229351197 - 2¹⁵ = 1229318429 is a prime.

It is a super-2 number, since 2×1229351197² = 3022608731130665618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229351177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614675598 + 614675599.

It is an arithmetic number, because the mean of its divisors is an integer number (614675599).

Almost surely, 2^1229351197 is an apocalyptic number.

It is an amenable number.

1229351197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229351197 is an equidigital number, since it uses as much as digits as its factorization.

1229351197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 1229351197 is about 35062.1048569535. The cubic root of 1229351197 is about 1071.2528478552.

The spelling of 1229351197 in words is "one billion, two hundred twenty-nine million, three hundred fifty-one thousand, one hundred ninety-seven".