141991805124 has 81 divisors (see below), whose sum is σ = 388737523629. Its totient is φ = 43680742560.

The previous prime is 141991805117. The next prime is 141991805143. The reversal of 141991805124 is 421508199141.

It is a happy number.

The square root of 141991805124 is 376818.

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

141991805124 is a `hidden beast` number, since 1 + 41 + 9 + 91 + 8 + 0 + 512 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21004704900 + 120987100224 = 144930^2 + 347832^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 141991805124.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 29389389 + ... + 29394219.

Almost surely, 2^141991805124 is an apocalyptic number.

141991805124 is the 376818-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 141991805124

141991805124 is an abundant number, since it is smaller than the sum of its proper divisors (246745718505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

141991805124 is an equidigital number, since it uses as much as digits as its factorization.

141991805124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698 (or 4849 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 141991805124 in words is "one hundred forty-one billion, nine hundred ninety-one million, eight hundred five thousand, one hundred twenty-four".