150964108681 has 3 divisors (see below), whose sum is σ = 150964497223. Its totient is φ = 150963720140.

The previous prime is 150964108639. The next prime is 150964108703. The reversal of 150964108681 is 186801469051.

The square root of 150964108681 is 388541.

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 can be written as a sum of positive squares in only one way, i.e., 69453858681 + 81510250000 = 263541^2 + 285500^2 .

It is not a de Polignac number, because 150964108681 - 2¹⁹ = 150963584393 is a prime.

It is a super-2 number, since 2×150964108681² (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 (150964138681) 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, 194271 + ... + 582811.

Almost surely, 2^150964108681 is an apocalyptic number.

150964108681 is the 388541-st square number.

150964108681 is the 194271-st centered octagonal number.

It is an amenable number.

150964108681 is a deficient number, since it is larger than the sum of its proper divisors (388542).

150964108681 is an frugal number, since it uses more digits than its factorization.

150964108681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777082 (or 388541 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 49.

Multiplying 150964108681 by its sum of digits (49), we get a square (7397241325369 = 2719787²).

The spelling of 150964108681 in words is "one hundred fifty billion, nine hundred sixty-four million, one hundred eight thousand, six hundred eighty-one".