140220031 has 8 divisors (see below), whose sum is σ = 160355360. Its totient is φ = 120110688.

The previous prime is 140220001. The next prime is 140220053. The reversal of 140220031 is 130022041.

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 140220031 - 2⁷ = 140219903 is a prime.

It is a super-2 number, since 2×140220031² = 39323314187281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140219993 and 140220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140220001) 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, 6925 + ... + 18121.

It is an arithmetic number, because the mean of its divisors is an integer number (20044420).

Almost surely, 2^140220031 is an apocalyptic number.

140220031 is a deficient number, since it is larger than the sum of its proper divisors (20135329).

140220031 is a wasteful number, since it uses less digits than its factorization.

140220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993.

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

The square root of 140220031 is about 11841.4539225553. The cubic root of 140220031 is about 519.5212939113.

Adding to 140220031 its reverse (130022041), we get a palindrome (270242072).

The spelling of 140220031 in words is "one hundred forty million, two hundred twenty thousand, thirty-one".