1061100 has 90 divisors (see below), whose sum is σ = 3465924. Its totient is φ = 280800.

The previous prime is 1061087. The next prime is 1061101. The reversal of 1061100 is 11601.

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×1061100² = 2251866420000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1061101) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 8035 + ... + 8165.

2^1061100 is an apocalyptic number.

1061100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732962).

1061100 is an abundant number, since it is smaller than the sum of its proper divisors (2404824).

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

1061100 is a wasteful number, since it uses less digits than its factorization.

1061100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1061100 is about 1030.0970828034. The cubic root of 1061100 is about 101.9965396750.

Adding to 1061100 its reverse (11601), we get a palindrome (1072701).

The spelling of 1061100 in words is "one million, sixty-one thousand, one hundred".