1198542 has 16 divisors (see below), whose sum is σ = 2442960. Its totient is φ = 391872.

The previous prime is 1198537. The next prime is 1198583. The reversal of 1198542 is 2458911.

It is a happy number.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567 + ... + 2202.

It is an arithmetic number, because the mean of its divisors is an integer number (152685).

2^1198542 is an apocalyptic number.

1198542 is an abundant number, since it is smaller than the sum of its proper divisors (1244418).

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

1198542 is a wasteful number, since it uses less digits than its factorization.

1198542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827.

The product of its digits is 2880, while the sum is 30.

The square root of 1198542 is about 1094.7794298396. The cubic root of 1198542 is about 106.2228018042. Note that the first 3 decimals are identical.

The spelling of 1198542 in words is "one million, one hundred ninety-eight thousand, five hundred forty-two".