100540400452 has 6 divisors (see below), whose sum is σ = 175945700798. Its totient is φ = 50270200224.

The previous prime is 100540400371. The next prime is 100540400489. The reversal of 100540400452 is 254004045001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 55420693056 + 45119707396 = 235416^2 + 212414^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567550053 + ... + 12567550060.

Almost surely, 2^100540400452 is an apocalyptic number.

It is an amenable number.

100540400452 is a deficient number, since it is larger than the sum of its proper divisors (75405300346).

100540400452 is a wasteful number, since it uses less digits than its factorization.

100540400452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25135100117 (or 25135100115 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 100540400452 its reverse (254004045001), we get a palindrome (354544445453).

The spelling of 100540400452 in words is "one hundred billion, five hundred forty million, four hundred thousand, four hundred fifty-two".