140833391 has 4 divisors (see below), whose sum is σ = 140873712. Its totient is φ = 140793072.

The previous prime is 140833373. The next prime is 140833409. The reversal of 140833391 is 193338041.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (140833373) and next prime (140833409).

It is a cyclic number.

It is not a de Polignac number, because 140833391 - 2¹⁴ = 140817007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140833351) 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, 14366 + ... + 22091.

It is an arithmetic number, because the mean of its divisors is an integer number (35218428).

Almost surely, 2^140833391 is an apocalyptic number.

140833391 is a deficient number, since it is larger than the sum of its proper divisors (40321).

140833391 is an equidigital number, since it uses as much as digits as its factorization.

140833391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40320.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 140833391 is about 11867.3245089194. The cubic root of 140833391 is about 520.2777005364.

The spelling of 140833391 in words is "one hundred forty million, eight hundred thirty-three thousand, three hundred ninety-one".