140491783 has 8 divisors (see below), whose sum is σ = 146862080. Its totient is φ = 134236440.

The previous prime is 140491753. The next prime is 140491787. The reversal of 140491783 is 387194041.

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 140491783 - 2¹³ = 140483591 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 (140491787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26235 + ... + 31132.

It is an arithmetic number, because the mean of its divisors is an integer number (18357760).

Almost surely, 2^140491783 is an apocalyptic number.

140491783 is a deficient number, since it is larger than the sum of its proper divisors (6370297).

140491783 is an equidigital number, since it uses as much as digits as its factorization.

140491783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57477.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 140491783 is about 11852.9229728367. The cubic root of 140491783 is about 519.8566949781.

The spelling of 140491783 in words is "one hundred forty million, four hundred ninety-one thousand, seven hundred eighty-three".