140042033 has 4 divisors (see below), whose sum is σ = 142014528. Its totient is φ = 138069540.

The previous prime is 140042029. The next prime is 140042047. The reversal of 140042033 is 330240041.

140042033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 140042033 - 2² = 140042029 is a prime.

It is a super-2 number, since 2×140042033² = 39223542013546178, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140042233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 986141 + ... + 986282.

It is an arithmetic number, because the mean of its divisors is an integer number (35503632).

Almost surely, 2^140042033 is an apocalyptic number.

It is an amenable number.

140042033 is a deficient number, since it is larger than the sum of its proper divisors (1972495).

140042033 is an equidigital number, since it uses as much as digits as its factorization.

140042033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972494.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 140042033 is about 11833.9356513376. The cubic root of 140042033 is about 519.3013707245.

Adding to 140042033 its reverse (330240041), we get a palindrome (470282074).

The spelling of 140042033 in words is "one hundred forty million, forty-two thousand, thirty-three".