140023029 has 4 divisors (see below), whose sum is σ = 186697376. Its totient is φ = 93348684.

The previous prime is 140022977. The next prime is 140023043. The reversal of 140023029 is 920320041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140023029 - 2¹² = 140018933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140022996 and 140023014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140023529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23337169 + ... + 23337174.

It is an arithmetic number, because the mean of its divisors is an integer number (46674344).

Almost surely, 2^140023029 is an apocalyptic number.

It is an amenable number.

140023029 is a deficient number, since it is larger than the sum of its proper divisors (46674347).

140023029 is an equidigital number, since it uses as much as digits as its factorization.

140023029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46674346.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 140023029 is about 11833.1326790500. The cubic root of 140023029 is about 519.2778795638.

The spelling of 140023029 in words is "one hundred forty million, twenty-three thousand, twenty-nine".