1229905130 has 16 divisors (see below), whose sum is σ = 2214553824. Its totient is φ = 491801040.

The previous prime is 1229905063. The next prime is 1229905139. The reversal of 1229905130 is 315099221.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1229905139) 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 in 7 ways as a sum of consecutive naturals, for example, 14849 + ... + 51771.

It is an arithmetic number, because the mean of its divisors is an integer number (138409614).

Almost surely, 2^1229905130 is an apocalyptic number.

1229905130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229905130 is a deficient number, since it is larger than the sum of its proper divisors (984648694).

1229905130 is a wasteful number, since it uses less digits than its factorization.

1229905130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40261.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1229905130 is about 35070.0032791558. The cubic root of 1229905130 is about 1071.4137221984.

The spelling of 1229905130 in words is "one billion, two hundred twenty-nine million, nine hundred five thousand, one hundred thirty".