140455331 has 2 divisors, whose sum is σ = 140455332. Its totient is φ = 140455330.

The previous prime is 140455313. The next prime is 140455351. The reversal of 140455331 is 133554041.

Together with previous prime (140455313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (133554041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140455331 - 2⁶ = 140455267 is a prime.

It is a super-2 number, since 2×140455331² = 39455400012639122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140455331.

It is not a weakly prime, because it can be changed into another prime (140455351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70227665 + 70227666.

It is an arithmetic number, because the mean of its divisors is an integer number (70227666).

Almost surely, 2^140455331 is an apocalyptic number.

140455331 is a deficient number, since it is larger than the sum of its proper divisors (1).

140455331 is an equidigital number, since it uses as much as digits as its factorization.

140455331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 140455331 is about 11851.3851933012. The cubic root of 140455331 is about 519.8117304139.

The spelling of 140455331 in words is "one hundred forty million, four hundred fifty-five thousand, three hundred thirty-one".