100155459 has 4 divisors (see below), whose sum is σ = 133540616. Its totient is φ = 66770304.

The previous prime is 100155457. The next prime is 100155469. The reversal of 100155459 is 954551001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954551001 = 3 ⋅318183667.

It is not a de Polignac number, because 100155459 - 2¹ = 100155457 is a prime.

It is a super-2 number, since 2×100155459² = 20062231935001362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100155457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16692574 + ... + 16692579.

It is an arithmetic number, because the mean of its divisors is an integer number (33385154).

Almost surely, 2^100155459 is an apocalyptic number.

100155459 is a deficient number, since it is larger than the sum of its proper divisors (33385157).

100155459 is an equidigital number, since it uses as much as digits as its factorization.

100155459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33385156.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 100155459 is about 10007.7699314083. The cubic root of 100155459 is about 464.3992844154.

The spelling of 100155459 in words is "one hundred million, one hundred fifty-five thousand, four hundred fifty-nine".