1098156 has 12 divisors (see below), whose sum is σ = 2562392. Its totient is φ = 366048.

The previous prime is 1098151. The next prime is 1098187. The reversal of 1098156 is 6518901.

It is a happy number.

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 (1098151) 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, 45745 + ... + 45768.

2^1098156 is an apocalyptic number.

It is an amenable number.

1098156 is an abundant number, since it is smaller than the sum of its proper divisors (1464236).

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

1098156 is a wasteful number, since it uses less digits than its factorization.

1098156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91520 (or 91518 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 1098156 is about 1047.9293869341. The cubic root of 1098156 is about 103.1702967217.

The spelling of 1098156 in words is "one million, ninety-eight thousand, one hundred fifty-six".