12136452250 has 32 divisors (see below), whose sum is σ = 24467094288. Its totient is φ = 4481150400.

The previous prime is 12136452247. The next prime is 12136452253. The reversal of 12136452250 is 5225463121.

It is an interprime number because it is at equal distance from previous prime (12136452247) and next prime (12136452253).

It can be written as a sum of positive squares in 8 ways, for example, as 1110822241 + 11025630009 = 33329^2 + 105003^2 .

It is not an unprimeable number, because it can be changed into a prime (12136452253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1863897 + ... + 1870396.

Almost surely, 2^12136452250 is an apocalyptic number.

12136452250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12136452250 is an abundant number, since it is smaller than the sum of its proper divisors (12330642038).

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

12136452250 is a wasteful number, since it uses less digits than its factorization.

12136452250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734323 (or 3734313 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12136452250 in words is "twelve billion, one hundred thirty-six million, four hundred fifty-two thousand, two hundred fifty".