1101642 has 16 divisors (see below), whose sum is σ = 2229120. Its totient is φ = 362912.

The previous prime is 1101641. The next prime is 1101649. The reversal of 1101642 is 2461011.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1101641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498 + ... + 1565.

It is an arithmetic number, because the mean of its divisors is an integer number (139320).

2^1101642 is an apocalyptic number.

1101642 is an abundant number, since it is smaller than the sum of its proper divisors (1127478).

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

1101642 is a wasteful number, since it uses less digits than its factorization.

1101642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1101642 is about 1049.5913490497. The cubic root of 1101642 is about 103.2793497655.

Adding to 1101642 its reverse (2461011), we get a palindrome (3562653).

The spelling of 1101642 in words is "one million, one hundred one thousand, six hundred forty-two".