140821371 has 48 divisors (see below), whose sum is σ = 217676160. Its totient is φ = 87609600.

The previous prime is 140821363. The next prime is 140821379. The reversal of 140821371 is 173128041.

140821371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140821363) and next prime (140821379).

It is not a de Polignac number, because 140821371 - 2³ = 140821363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140821379) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1394221 + ... + 1394321.

It is an arithmetic number, because the mean of its divisors is an integer number (4534920).

Almost surely, 2^140821371 is an apocalyptic number.

140821371 is a deficient number, since it is larger than the sum of its proper divisors (76854789).

140821371 is a wasteful number, since it uses less digits than its factorization.

140821371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 140821371 is about 11866.8180655136. The cubic root of 140821371 is about 520.2628983747.

The spelling of 140821371 in words is "one hundred forty million, eight hundred twenty-one thousand, three hundred seventy-one".