100400755 has 48 divisors (see below), whose sum is σ = 156280320. Its totient is φ = 61302528.

The previous prime is 100400749. The next prime is 100400791. The reversal of 100400755 is 557004001.

It is not a de Polignac number, because 100400755 - 2³ = 100400747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91822 + ... + 92908.

It is an arithmetic number, because the mean of its divisors is an integer number (3255840).

Almost surely, 2^100400755 is an apocalyptic number.

100400755 is a deficient number, since it is larger than the sum of its proper divisors (55879565).

100400755 is a wasteful number, since it uses less digits than its factorization.

100400755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 100400755 is about 10020.0177145552. The cubic root of 100400755 is about 464.7781035555.

Adding to 100400755 its reverse (557004001), we get a palindrome (657404756).

The spelling of 100400755 in words is "one hundred million, four hundred thousand, seven hundred fifty-five".