1101387 has 16 divisors (see below), whose sum is σ = 1693440. Its totient is φ = 623712.

The previous prime is 1101377. The next prime is 1101389. The reversal of 1101387 is 7831011.

It is not a de Polignac number, because 1101387 - 2⁴ = 1101371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

1101387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1101389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3613 + ... + 3905.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^1101387 is an apocalyptic number.

1101387 is a deficient number, since it is larger than the sum of its proper divisors (592053).

1101387 is a wasteful number, since it uses less digits than its factorization.

1101387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1101387 is about 1049.4698661705. The cubic root of 1101387 is about 103.2713803688.

Adding to 1101387 its reverse (7831011), we get a palindrome (8932398).

The spelling of 1101387 in words is "one million, one hundred one thousand, three hundred eighty-seven".