140449263 has 4 divisors (see below), whose sum is σ = 187265688. Its totient is φ = 93632840.

The previous prime is 140449261. The next prime is 140449271. The reversal of 140449263 is 362944041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362944041 = 3 ⋅120981347.

It is a cyclic number.

It is not a de Polignac number, because 140449263 - 2¹ = 140449261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140449261) 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 3 ways as a sum of consecutive naturals, for example, 23408208 + ... + 23408213.

It is an arithmetic number, because the mean of its divisors is an integer number (46816422).

Almost surely, 2^140449263 is an apocalyptic number.

140449263 is a deficient number, since it is larger than the sum of its proper divisors (46816425).

140449263 is an equidigital number, since it uses as much as digits as its factorization.

140449263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46816424.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 140449263 is about 11851.1291867062. The cubic root of 140449263 is about 519.8042446105.

The spelling of 140449263 in words is "one hundred forty million, four hundred forty-nine thousand, two hundred sixty-three".