1340031 has 16 divisors (see below), whose sum is σ = 2227968. Its totient is φ = 696000.

The previous prime is 1340021. The next prime is 1340033. The reversal of 1340031 is 1300431.

1340031 = 34² + 35² + ... + 159².

It is not a de Polignac number, because 1340031 - 2⁷ = 1339903 is a prime.

It is a super-2 number, since 2×1340031² = 3591366161922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1339989 and 1340016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (139248).

2^1340031 is an apocalyptic number.

1340031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1340031 is a deficient number, since it is larger than the sum of its proper divisors (887937).

1340031 is a wasteful number, since it uses less digits than its factorization.

1340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5822.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1340031 is about 1157.5970801622. The cubic root of 1340031 is about 110.2482273048.

Adding to 1340031 its reverse (1300431), we get a palindrome (2640462).

It can be divided in two parts, 13400 and 31, that added together give a palindrome (13431).

The spelling of 1340031 in words is "one million, three hundred forty thousand, thirty-one".