1400134013 has 4 divisors (see below), whose sum is σ = 1413996828. Its totient is φ = 1386271200.

The previous prime is 1400134009. The next prime is 1400134031. The reversal of 1400134013 is 3104310041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1065500164 + 334633849 = 32642^2 + 18293^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400134013 - 2² = 1400134009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1400133982 and 1400134000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400134063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6931256 + ... + 6931457.

It is an arithmetic number, because the mean of its divisors is an integer number (353499207).

Almost surely, 2^1400134013 is an apocalyptic number.

It is an amenable number.

1400134013 is a deficient number, since it is larger than the sum of its proper divisors (13862815).

1400134013 is a wasteful number, since it uses less digits than its factorization.

1400134013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13862814.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1400134013 is about 37418.3646489261. The cubic root of 1400134013 is about 1118.7246359095.

Adding to 1400134013 its reverse (3104310041), we get a palindrome (4504444054).

The spelling of 1400134013 in words is "one billion, four hundred million, one hundred thirty-four thousand, thirteen".