1230012136 has 16 divisors (see below), whose sum is σ = 2362523940. Its totient is φ = 600005760.

The previous prime is 1230012103. The next prime is 1230012191. The reversal of 1230012136 is 6312100321.

It can be written as a sum of positive squares in 2 ways, for example, as 923552100 + 306460036 = 30390^2 + 17506^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874691 + ... + 1875346.

Almost surely, 2^1230012136 is an apocalyptic number.

It is an amenable number.

1230012136 is a deficient number, since it is larger than the sum of its proper divisors (1132511804).

1230012136 is a wasteful number, since it uses less digits than its factorization.

1230012136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750084 (or 3750080 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1230012136 is about 35071.5288517624. The cubic root of 1230012136 is about 1071.4447935305. Note that the first 3 decimals are identical.

Adding to 1230012136 its reverse (6312100321), we get a palindrome (7542112457).

The spelling of 1230012136 in words is "one billion, two hundred thirty million, twelve thousand, one hundred thirty-six".