1101971 has 16 divisors (see below), whose sum is σ = 1276800. Its totient is φ = 943488.

The previous prime is 1101967. The next prime is 1102001. The reversal of 1101971 is 1791011.

It is not a de Polignac number, because 1101971 - 2² = 1101967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101901) 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, 13910 + ... + 13988.

It is an arithmetic number, because the mean of its divisors is an integer number (79800).

2^1101971 is an apocalyptic number.

1101971 is a deficient number, since it is larger than the sum of its proper divisors (174829).

1101971 is a wasteful number, since it uses less digits than its factorization.

1101971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158.

The product of its (nonzero) digits is 63, while the sum is 20.

The square root of 1101971 is about 1049.7480650137. The cubic root of 1101971 is about 103.2896300332.

Adding to 1101971 its reverse (1791011), we get a palindrome (2892982).

The spelling of 1101971 in words is "one million, one hundred one thousand, nine hundred seventy-one".