140161896 has 192 divisors, whose sum is σ = 454970880. Its totient is φ = 38154240.

The previous prime is 140161891. The next prime is 140161909. The reversal of 140161896 is 698161041.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 140161896.

It is not an unprimeable number, because it can be changed into a prime (140161891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1444920 + ... + 1445016.

It is an arithmetic number, because the mean of its divisors is an integer number (2369640).

Almost surely, 2^140161896 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 140161896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227485440).

140161896 is an abundant number, since it is smaller than the sum of its proper divisors (314808984).

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

140161896 is a wasteful number, since it uses less digits than its factorization.

140161896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 140161896 is about 11838.9989441675. The cubic root of 140161896 is about 519.4494864215.

The spelling of 140161896 in words is "one hundred forty million, one hundred sixty-one thousand, eight hundred ninety-six".