1314631 has 4 divisors (see below), whose sum is σ = 1317064. Its totient is φ = 1312200.

The previous prime is 1314613. The next prime is 1314659. The reversal of 1314631 is 1364131.

1314631 is a nontrivial binomial coefficient, being equal to C(1622, 2).

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

It is a 3-Lehmer number, since φ(1314631) divides (1314631-1)³.

It is a cyclic number.

It is not a de Polignac number, because 1314631 - 2⁷ = 1314503 is a prime.

It is a super-2 number, since 2×1314631² = 3456509332322, which contains 22 as substring.

1314631 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1314599 and 1314608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314601) 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, 1 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (329266).

2^1314631 is an apocalyptic number.

1314631 is the 1621-st triangular number and also the 811-st hexagonal number.

1314631 is the 541-st centered nonagonal number.

1314631 is a deficient number, since it is larger than the sum of its proper divisors (2433).

1314631 is an equidigital number, since it uses as much as digits as its factorization.

1314631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432.

The product of its digits is 216, while the sum is 19.

The square root of 1314631 is about 1146.5735911837. The cubic root of 1314631 is about 109.5472020457.

Adding to 1314631 its reverse (1364131), we get a palindrome (2678762).

The spelling of 1314631 in words is "one million, three hundred fourteen thousand, six hundred thirty-one".