1311607 has 4 divisors (see below), whose sum is σ = 1430856. Its totient is φ = 1192360.

The previous prime is 1311599. The next prime is 1311617. The reversal of 1311607 is 7061131.

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 1311607 - 2³ = 1311599 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311617) 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, 59608 + ... + 59629.

It is an arithmetic number, because the mean of its divisors is an integer number (357714).

2^1311607 is an apocalyptic number.

1311607 is a deficient number, since it is larger than the sum of its proper divisors (119249).

1311607 is a wasteful number, since it uses less digits than its factorization.

1311607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119248.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1311607 is about 1145.2541202720. The cubic root of 1311607 is about 109.4631416852.

Adding to 1311607 its reverse (7061131), we get a palindrome (8372738).

The spelling of 1311607 in words is "one million, three hundred eleven thousand, six hundred seven".