1971102 has 32 divisors (see below), whose sum is σ = 4575744. Its totient is φ = 554400.

The previous prime is 1971091. The next prime is 1971107. The reversal of 1971102 is 2011791.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1971107) 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, 2652 + ... + 3312.

It is an arithmetic number, because the mean of its divisors is an integer number (142992).

2^1971102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1971102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287872).

1971102 is an abundant number, since it is smaller than the sum of its proper divisors (2604642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1971102 is a wasteful number, since it uses less digits than its factorization.

1971102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 1971102 is about 1403.9594011224. The cubic root of 1971102 is about 125.3823386781.

Adding to 1971102 its reverse (2011791), we get a palindrome (3982893).

The spelling of 1971102 in words is "one million, nine hundred seventy-one thousand, one hundred two".