4512156100 has 144 divisors (see below), whose sum is σ = 10899302400. Its totient is φ = 1613589120.

The previous prime is 4512156073. The next prime is 4512156107. The reversal of 4512156100 is 16512154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (4512156107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3451647 + ... + 3452953.

It is an arithmetic number, because the mean of its divisors is an integer number (75689600).

Almost surely, 2^4512156100 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 4512156100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5449651200).

4512156100 is an abundant number, since it is smaller than the sum of its proper divisors (6387146300).

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

4512156100 is a wasteful number, since it uses less digits than its factorization.

4512156100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 4512156100 is about 67172.5844374027. The cubic root of 4512156100 is about 1652.4489010820.

Adding to 4512156100 its reverse (16512154), we get a palindrome (4528668254).

The spelling of 4512156100 in words is "four billion, five hundred twelve million, one hundred fifty-six thousand, one hundred".