1229063140 has 24 divisors (see below), whose sum is σ = 2583077112. Its totient is φ = 491235840.

The previous prime is 1229063137. The next prime is 1229063183. The reversal of 1229063140 is 413609221.

It can be written as a sum of positive squares in 4 ways, for example, as 780978916 + 448084224 = 27946^2 + 21168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1229063099 and 1229063108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250 + ... + 49630.

It is an arithmetic number, because the mean of its divisors is an integer number (107628213).

Almost surely, 2^1229063140 is an apocalyptic number.

1229063140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229063140 is an abundant number, since it is smaller than the sum of its proper divisors (1354013972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229063140 is a wasteful number, since it uses less digits than its factorization.

1229063140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48687 (or 48685 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1229063140 is about 35057.9968052939. The cubic root of 1229063140 is about 1071.1691706583.

The spelling of 1229063140 in words is "one billion, two hundred twenty-nine million, sixty-three thousand, one hundred forty".