140243029 has 8 divisors (see below), whose sum is σ = 146718720. Its totient is φ = 133798896.

The previous prime is 140243023. The next prime is 140243053. The reversal of 140243029 is 920342041.

140243029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140243029 - 2³ = 140243021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140242994 and 140243012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140243021) 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, 1452 + ... + 16810.

It is an arithmetic number, because the mean of its divisors is an integer number (18339840).

Almost surely, 2^140243029 is an apocalyptic number.

It is an amenable number.

140243029 is a deficient number, since it is larger than the sum of its proper divisors (6475691).

140243029 is a wasteful number, since it uses less digits than its factorization.

140243029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15779.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 140243029 is about 11842.4249628191. The cubic root of 140243029 is about 519.5496952210.

The spelling of 140243029 in words is "one hundred forty million, two hundred forty-three thousand, twenty-nine".