140781072 has 80 divisors (see below), whose sum is σ = 373368960. Its totient is φ = 45696000.

The previous prime is 140781049. The next prime is 140781083. The reversal of 140781072 is 270187041.

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, 344004 + ... + 344412.

It is an arithmetic number, because the mean of its divisors is an integer number (4667112).

Almost surely, 2^140781072 is an apocalyptic number.

140781072 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 140781072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186684480).

140781072 is an abundant number, since it is smaller than the sum of its proper divisors (232587888).

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

140781072 is a wasteful number, since it uses less digits than its factorization.

140781072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 140781072 is about 11865.1199741090. The cubic root of 140781072 is about 520.2132655795.

The spelling of 140781072 in words is "one hundred forty million, seven hundred eighty-one thousand, seventy-two".