1091652 has 12 divisors (see below), whose sum is σ = 2547216. Its totient is φ = 363880.

The previous prime is 1091639. The next prime is 1091659. The reversal of 1091652 is 2561901.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1091659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45474 + ... + 45497.

It is an arithmetic number, because the mean of its divisors is an integer number (212268).

2^1091652 is an apocalyptic number.

1091652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1091652 is an abundant number, since it is smaller than the sum of its proper divisors (1455564).

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

1091652 is a wasteful number, since it uses less digits than its factorization.

1091652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90978 (or 90976 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1091652 is about 1044.8215158581. The cubic root of 1091652 is about 102.9662125644.

The spelling of 1091652 in words is "one million, ninety-one thousand, six hundred fifty-two".