1400140031 has 4 divisors (see below), whose sum is σ = 1417009272. Its totient is φ = 1383270792.

The previous prime is 1400140013. The next prime is 1400140057. The reversal of 1400140031 is 1300410041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1400140031 - 2¹⁸ = 1399877887 is a prime.

It is a super-2 number, since 2×1400140031² = 3920784212817361922, 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 = 1400139988 and 1400140015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400140331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8434496 + ... + 8434661.

It is an arithmetic number, because the mean of its divisors is an integer number (354252318).

Almost surely, 2^1400140031 is an apocalyptic number.

1400140031 is a deficient number, since it is larger than the sum of its proper divisors (16869241).

1400140031 is an equidigital number, since it uses as much as digits as its factorization.

1400140031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16869240.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1400140031 is about 37418.4450638986. The cubic root of 1400140031 is about 1118.7262387263.

Adding to 1400140031 its reverse (1300410041), we get a palindrome (2700550072).

The spelling of 1400140031 in words is "one billion, four hundred million, one hundred forty thousand, thirty-one".