100121480 has 16 divisors (see below), whose sum is σ = 225273420. Its totient is φ = 40048576.

The previous prime is 100121473. The next prime is 100121521. The reversal of 100121480 is 84121001.

It can be written as a sum of positive squares in 2 ways, for example, as 100120036 + 1444 = 10006^2 + 38^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 1251479 + ... + 1251558.

Almost surely, 2^100121480 is an apocalyptic number.

100121480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121480 is an abundant number, since it is smaller than the sum of its proper divisors (125151940).

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

100121480 is a wasteful number, since it uses less digits than its factorization.

100121480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503048 (or 2503044 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 100121480 is about 10006.0721564458. The cubic root of 100121480 is about 464.3467607078.

Adding to 100121480 its reverse (84121001), we get a palindrome (184242481).

The spelling of 100121480 in words is "one hundred million, one hundred twenty-one thousand, four hundred eighty".