140100031 has 2 divisors, whose sum is σ = 140100032. Its totient is φ = 140100030.

The previous prime is 140100017. The next prime is 140100047. The reversal of 140100031 is 130001041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140100031 - 2¹¹ = 140097983 is a prime.

It is a super-2 number, since 2×140100031² = 39256037372401922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 140099990 and 140100017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140104031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70050015 + 70050016.

It is an arithmetic number, because the mean of its divisors is an integer number (70050016).

Almost surely, 2^140100031 is an apocalyptic number.

140100031 is a deficient number, since it is larger than the sum of its proper divisors (1).

140100031 is an equidigital number, since it uses as much as digits as its factorization.

140100031 is an odious number, because the sum of its binary digits is odd.

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

The square root of 140100031 is about 11836.3858926617. The cubic root of 140100031 is about 519.3730498801.

Adding to 140100031 its reverse (130001041), we get a palindrome (270101072).

The spelling of 140100031 in words is "one hundred forty million, one hundred thousand, thirty-one".