141681408 has 144 divisors (see below), whose sum is σ = 425413632. Its totient is φ = 41472000.

The previous prime is 141681391. The next prime is 141681437. The reversal of 141681408 is 804186141.

It is a Cunningham number, because it is equal to 11903²-1.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261618 + ... + 262158.

Almost surely, 2^141681408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 141681408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212706816).

141681408 is an abundant number, since it is smaller than the sum of its proper divisors (283732224).

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

141681408 is a wasteful number, since it uses less digits than its factorization.

141681408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 588 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 141681408 is about 11902.9999579938. Note that the first 4 decimals coincide. The cubic root of 141681408 is about 521.3198817108.

It can be divided in two parts, 14168 and 1408, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 141681408 in words is "one hundred forty-one million, six hundred eighty-one thousand, four hundred eight".