140031001 has 12 divisors (see below), whose sum is σ = 157199616. Its totient is φ = 124587320.

The previous prime is 140030993. The next prime is 140031019. The reversal of 140031001 is 100130041.

It is a happy number.

It is not a de Polignac number, because 140031001 - 2³ = 140030993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140031071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6625 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (13099968).

Almost surely, 2^140031001 is an apocalyptic number.

140031001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

140031001 is a deficient number, since it is larger than the sum of its proper divisors (17168615).

140031001 is a wasteful number, since it uses less digits than its factorization.

140031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24692 (or 24681 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 140031001 is about 11833.4695250379. The cubic root of 140031001 is about 519.2877341445.

Adding to 140031001 its reverse (100130041), we get a palindrome (240161042).

The spelling of 140031001 in words is "one hundred forty million, thirty-one thousand, one".