12500305154 has 4 divisors (see below), whose sum is σ = 18750457734. Its totient is φ = 6250152576.

The previous prime is 12500305151. The next prime is 12500305189. The reversal of 12500305154 is 45150300521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6711377929 + 5788927225 = 81923^2 + 76085^2 .

It is not an unprimeable number, because it can be changed into a prime (12500305151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125076287 + ... + 3125076290.

Almost surely, 2^12500305154 is an apocalyptic number.

12500305154 is a deficient number, since it is larger than the sum of its proper divisors (6250152580).

12500305154 is an equidigital number, since it uses as much as digits as its factorization.

12500305154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250152579.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 12500305154 its reverse (45150300521), we get a palindrome (57650605675).

The spelling of 12500305154 in words is "twelve billion, five hundred million, three hundred five thousand, one hundred fifty-four".