136967348281 has 3 divisors (see below), whose sum is σ = 136967718373. Its totient is φ = 136966978190.

The previous prime is 136967348213. The next prime is 136967348351. The reversal of 136967348281 is 182843769631.

The square root of 136967348281 is 370091.

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 136967348281 - 2¹¹ = 136967346233 is a prime.

It is a super-2 number, since 2×136967348281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136967348381) 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, 185046 + ... + 555136.

Almost surely, 2^136967348281 is an apocalyptic number.

136967348281 is the 370091-st square number.

136967348281 is the 185046-th centered octagonal number.

It is an amenable number.

136967348281 is a deficient number, since it is larger than the sum of its proper divisors (370092).

136967348281 is an frugal number, since it uses more digits than its factorization.

136967348281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740182 (or 370091 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The spelling of 136967348281 in words is "one hundred thirty-six billion, nine hundred sixty-seven million, three hundred forty-eight thousand, two hundred eighty-one".