1387133 has 8 divisors (see below), whose sum is σ = 1593120. Its totient is φ = 1194480.

The previous prime is 1387129. The next prime is 1387147. The reversal of 1387133 is 3317831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1387133 - 2² = 1387129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110 + ... + 3527.

It is an arithmetic number, because the mean of its divisors is an integer number (199140).

2^1387133 is an apocalyptic number.

It is an amenable number.

1387133 is a deficient number, since it is larger than the sum of its proper divisors (205987).

1387133 is a wasteful number, since it uses less digits than its factorization.

1387133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667.

The product of its digits is 1512, while the sum is 26.

The square root of 1387133 is about 1177.7661058122. The cubic root of 1387133 is about 111.5251205239.

The spelling of 1387133 in words is "one million, three hundred eighty-seven thousand, one hundred thirty-three".