140043001 has 8 divisors (see below), whose sum is σ = 165568320. Its totient is φ = 115897488.

The previous prime is 140042999. The next prime is 140043011. The reversal of 140043001 is 100340041.

140043001 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 not a de Polignac number, because 140043001 - 2¹ = 140042999 is a prime.

It is a super-2 number, since 2×140043001² = 39224084258172002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140043011) 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, 344731 + ... + 345136.

It is an arithmetic number, because the mean of its divisors is an integer number (20696040).

Almost surely, 2^140043001 is an apocalyptic number.

It is an amenable number.

140043001 is a deficient number, since it is larger than the sum of its proper divisors (25525319).

140043001 is an equidigital number, since it uses as much as digits as its factorization.

140043001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689903.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 140043001 is about 11833.9765505936. The cubic root of 140043001 is about 519.3025672285.

Adding to 140043001 its reverse (100340041), we get a palindrome (240383042).

The spelling of 140043001 in words is "one hundred forty million, forty-three thousand, one".