140372881 has 4 divisors (see below), whose sum is σ = 153134064. Its totient is φ = 127611700.

The previous prime is 140372861. The next prime is 140372899. The reversal of 140372881 is 188273041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140372881 - 2⁹ = 140372369 is a prime.

It is a super-2 number, since 2×140372881² = 39409091440480322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140372861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6380575 + ... + 6380596.

It is an arithmetic number, because the mean of its divisors is an integer number (38283516).

Almost surely, 2^140372881 is an apocalyptic number.

140372881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140372881 is a deficient number, since it is larger than the sum of its proper divisors (12761183).

140372881 is a wasteful number, since it uses less digits than its factorization.

140372881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761182.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 140372881 is about 11847.9061863268. The cubic root of 140372881 is about 519.7099973200.

The spelling of 140372881 in words is "one hundred forty million, three hundred seventy-two thousand, eight hundred eighty-one".