12134500450 has 24 divisors (see below), whose sum is σ = 23348455380. Its totient is φ = 4686427200.

The previous prime is 12134500429. The next prime is 12134500463. The reversal of 12134500450 is 5400543121.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 866890249 + 11267610201 = 29443^2 + 106149^2 .

It is a super-2 number, since 2×12134500450² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4182861 + ... + 4185760.

Almost surely, 2^12134500450 is an apocalyptic number.

12134500450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12134500450 is a deficient number, since it is larger than the sum of its proper divisors (11213954930).

12134500450 is a wasteful number, since it uses less digits than its factorization.

12134500450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8368662 (or 8368657 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 12134500450 in words is "twelve billion, one hundred thirty-four million, five hundred thousand, four hundred fifty".