1235542116 has 48 divisors (see below), whose sum is σ = 3063916800. Its totient is φ = 386173440.

The previous prime is 1235542111. The next prime is 1235542181. The reversal of 1235542116 is 6112455321.

It is not an unprimeable number, because it can be changed into a prime (1235542111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44110 + ... + 66458.

It is an arithmetic number, because the mean of its divisors is an integer number (63831600).

Almost surely, 2^1235542116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1235542116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531958400).

1235542116 is an abundant number, since it is smaller than the sum of its proper divisors (1828374684).

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

1235542116 is a wasteful number, since it uses less digits than its factorization.

1235542116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22644 (or 22642 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 1235542116 is about 35150.2790316094. The cubic root of 1235542116 is about 1073.0480869084.

Adding to 1235542116 its reverse (6112455321), we get a palindrome (7347997437).

The spelling of 1235542116 in words is "one billion, two hundred thirty-five million, five hundred forty-two thousand, one hundred sixteen".