100550451 has 32 divisors (see below), whose sum is σ = 145117440. Its totient is φ = 61737984.

The previous prime is 100550431. The next prime is 100550459. The reversal of 100550451 is 154055001.

It is not a de Polignac number, because 100550451 - 2⁷ = 100550323 is a prime.

It is a super-2 number, since 2×100550451² = 20220786392606802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100550459) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 431431 + ... + 431663.

It is an arithmetic number, because the mean of its divisors is an integer number (4534920).

Almost surely, 2^100550451 is an apocalyptic number.

100550451 is a deficient number, since it is larger than the sum of its proper divisors (44566989).

100550451 is a wasteful number, since it uses less digits than its factorization.

100550451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 100550451 is about 10027.4847793452. The cubic root of 100550451 is about 465.0089812117.

The spelling of 100550451 in words is "one hundred million, five hundred fifty thousand, four hundred fifty-one".