21156150135 has 8 divisors (see below), whose sum is σ = 33849840240. Its totient is φ = 11283280064.

The previous prime is 21156150107. The next prime is 21156150139. The reversal of 21156150135 is 53105165112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21156150135 - 2¹¹ = 21156148087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21156150139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705204990 + ... + 705205019.

It is an arithmetic number, because the mean of its divisors is an integer number (4231230030).

Almost surely, 2^21156150135 is an apocalyptic number.

21156150135 is a deficient number, since it is larger than the sum of its proper divisors (12693690105).

21156150135 is a wasteful number, since it uses less digits than its factorization.

21156150135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410410017.

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 21156150135 in words is "twenty-one billion, one hundred fifty-six million, one hundred fifty thousand, one hundred thirty-five".