126012930289 has 3 divisors (see below), whose sum is σ = 126013285273. Its totient is φ = 126012575306.

The previous prime is 126012930283. The next prime is 126012930299. The reversal of 126012930289 is 982039210621.

The square root of 126012930289 is 354983.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 126012930289 - 2¹⁹ = 126012406001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126012930283) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 177492 + ... + 532474.

Almost surely, 2^126012930289 is an apocalyptic number.

126012930289 is the 354983-rd square number.

126012930289 is the 177492-nd centered octagonal number.

It is an amenable number.

126012930289 is a deficient number, since it is larger than the sum of its proper divisors (354984).

126012930289 is an frugal number, since it uses more digits than its factorization.

126012930289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709966 (or 354983 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 126012930289 in words is "one hundred twenty-six billion, twelve million, nine hundred thirty thousand, two hundred eighty-nine".