140442263 has 8 divisors (see below), whose sum is σ = 151824288. Its totient is φ = 129142944.

The previous prime is 140442259. The next prime is 140442271. The reversal of 140442263 is 362244041.

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 140442263 - 2² = 140442259 is a prime.

It is a super-2 number, since 2×140442263² = 39448058473122338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140442223) 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 7 ways as a sum of consecutive naturals, for example, 17120 + ... + 23957.

It is an arithmetic number, because the mean of its divisors is an integer number (18978036).

Almost surely, 2^140442263 is an apocalyptic number.

140442263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140442263 is a deficient number, since it is larger than the sum of its proper divisors (11382025).

140442263 is a wasteful number, since it uses less digits than its factorization.

140442263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41353.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 140442263 is about 11850.8338525186. The cubic root of 140442263 is about 519.7956087751.

The spelling of 140442263 in words is "one hundred forty million, four hundred forty-two thousand, two hundred sixty-three".