1229363906 has 4 divisors (see below), whose sum is σ = 1844045862. Its totient is φ = 614681952.

The previous prime is 1229363903. The next prime is 1229363921. The reversal of 1229363906 is 6093639221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6093639221 = 11489 ⋅530389.

It can be written as a sum of positive squares in only one way, i.e., 1218638281 + 10725625 = 34909^2 + 3275^2 .

It is a super-2 number, since 2×1229363906² = 3022671226751153672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1229363903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307340975 + ... + 307340978.

Almost surely, 2^1229363906 is an apocalyptic number.

1229363906 is a deficient number, since it is larger than the sum of its proper divisors (614681956).

1229363906 is an equidigital number, since it uses as much as digits as its factorization.

1229363906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614681955.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 1229363906 is about 35062.2860920391. The cubic root of 1229363906 is about 1071.2565393704.

The spelling of 1229363906 in words is "one billion, two hundred twenty-nine million, three hundred sixty-three thousand, nine hundred six".