100540129 has 4 divisors (see below), whose sum is σ = 104007060. Its totient is φ = 97073200.

The previous prime is 100540117. The next prime is 100540151. The reversal of 100540129 is 921045001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34199104 + 66341025 = 5848^2 + 8145^2 .

It is a cyclic number.

It is not a de Polignac number, because 100540129 - 2⁹ = 100539617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100540109) 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 3 ways as a sum of consecutive naturals, for example, 1733422 + ... + 1733479.

It is an arithmetic number, because the mean of its divisors is an integer number (26001765).

Almost surely, 2^100540129 is an apocalyptic number.

It is an amenable number.

100540129 is a deficient number, since it is larger than the sum of its proper divisors (3466931).

100540129 is an equidigital number, since it uses as much as digits as its factorization.

100540129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466930.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 100540129 is about 10026.9700807373. The cubic root of 100540129 is about 464.9930688449.

The spelling of 100540129 in words is "one hundred million, five hundred forty thousand, one hundred twenty-nine".