140031331 has 4 divisors (see below), whose sum is σ = 152761464. Its totient is φ = 127301200.

The previous prime is 140031323. The next prime is 140031361. The reversal of 140031331 is 133130041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140031331 - 2³ = 140031323 is a prime.

It is a super-3 number, since 3×140031331³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140031361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6365050 + ... + 6365071.

It is an arithmetic number, because the mean of its divisors is an integer number (38190366).

Almost surely, 2^140031331 is an apocalyptic number.

140031331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140031331 is a deficient number, since it is larger than the sum of its proper divisors (12730133).

140031331 is a wasteful number, since it uses less digits than its factorization.

140031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12730132.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 140031331 is about 11833.4834685311. The cubic root of 140031331 is about 519.2881420656.

Adding to 140031331 its reverse (133130041), we get a palindrome (273161372).

The spelling of 140031331 in words is "one hundred forty million, thirty-one thousand, three hundred thirty-one".