100145402252 has 24 divisors (see below), whose sum is σ = 208999101696. Its totient is φ = 41053394448.

The previous prime is 100145402251. The next prime is 100145402261. The reversal of 100145402252 is 252204541001.

It is not an unprimeable number, because it can be changed into a prime (100145402251) 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, 77751998 + ... + 77753285.

It is an arithmetic number, because the mean of its divisors is an integer number (8708295904).

Almost surely, 2^100145402252 is an apocalyptic number.

It is an amenable number.

100145402252 is an abundant number, since it is smaller than the sum of its proper divisors (108853699444).

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

100145402252 is a wasteful number, since it uses less digits than its factorization.

100145402252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155505317 (or 155505315 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 100145402252 its reverse (252204541001), we get a palindrome (352349943253).

The spelling of 100145402252 in words is "one hundred billion, one hundred forty-five million, four hundred two thousand, two hundred fifty-two".