108214023681 has 15 divisors (see below), whose sum is σ = 161657470513. Its totient is φ = 72140708700.

The previous prime is 108214023661. The next prime is 108214023683. The reversal of 108214023681 is 186320412801.

The square root of 108214023681 is 328959.

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

It is not a de Polignac number, because 108214023681 - 2⁷ = 108214023553 is a prime.

It is a super-2 number, since 2×108214023681² (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 (108214023683) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2942356 + ... + 2978906.

Almost surely, 2^108214023681 is an apocalyptic number.

108214023681 is the 328959-th square number.

108214023681 is the 164480-th centered octagonal number.

It is an amenable number.

108214023681 is a deficient number, since it is larger than the sum of its proper divisors (53443446832).

108214023681 is an frugal number, since it uses more digits than its factorization.

108214023681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73114 (or 36554 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

Multiplying 108214023681 by its sum of digits (36), we get a square (3895704852516 = 1973754²).

The spelling of 108214023681 in words is "one hundred eight billion, two hundred fourteen million, twenty-three thousand, six hundred eighty-one".