140788128 has 96 divisors (see below), whose sum is σ = 402446016. Its totient is φ = 42835968.

The previous prime is 140788117. The next prime is 140788133. The reversal of 140788128 is 821887041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 120475 + ... + 121637.

It is an arithmetic number, because the mean of its divisors is an integer number (4192146).

Almost surely, 2^140788128 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 140788128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201223008).

140788128 is an abundant number, since it is smaller than the sum of its proper divisors (261657888).

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

140788128 is a wasteful number, since it uses less digits than its factorization.

140788128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 140788128 is about 11865.4173125095. The cubic root of 140788128 is about 520.2219565288.

The spelling of 140788128 in words is "one hundred forty million, seven hundred eighty-eight thousand, one hundred twenty-eight".