140681952 has 72 divisors (see below), whose sum is σ = 401211720. Its totient is φ = 46759680.

The previous prime is 140681927. The next prime is 140681963. The reversal of 140681952 is 259186041.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189999 + ... + 190737.

It is an arithmetic number, because the mean of its divisors is an integer number (5572385).

Almost surely, 2^140681952 is an apocalyptic number.

140681952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140681952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200605860).

140681952 is an abundant number, since it is smaller than the sum of its proper divisors (260529768).

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

140681952 is a wasteful number, since it uses less digits than its factorization.

140681952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1405 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 140681952 is about 11860.9422897171. The cubic root of 140681952 is about 520.0911477304.

The spelling of 140681952 in words is "one hundred forty million, six hundred eighty-one thousand, nine hundred fifty-two".