140394331 has 8 divisors (see below), whose sum is σ = 175037184. Its totient is φ = 109398120.

The previous prime is 140394283. The next prime is 140394389. The reversal of 140394331 is 133493041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140394331 - 2⁷ = 140394203 is a prime.

It is a super-2 number, since 2×140394331² = 39421136353875122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 140394331.

It is not an unprimeable number, because it can be changed into a prime (140394431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911575 + ... + 911728.

It is an arithmetic number, because the mean of its divisors is an integer number (21879648).

Almost surely, 2^140394331 is an apocalyptic number.

140394331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140394331 is a deficient number, since it is larger than the sum of its proper divisors (34642853).

140394331 is a wasteful number, since it uses less digits than its factorization.

140394331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823321.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 140394331 is about 11848.8113749861. The cubic root of 140394331 is about 519.7364677977.

The spelling of 140394331 in words is "one hundred forty million, three hundred ninety-four thousand, three hundred thirty-one".