100426415 has 4 divisors (see below), whose sum is σ = 120511704. Its totient is φ = 80341128.

The previous prime is 100426409. The next prime is 100426423. The reversal of 100426415 is 514624001.

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

It is a cyclic number.

It is not a de Polignac number, because 100426415 - 2¹² = 100422319 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 10042637 + ... + 10042646.

It is an arithmetic number, because the mean of its divisors is an integer number (30127926).

Almost surely, 2^100426415 is an apocalyptic number.

100426415 is a deficient number, since it is larger than the sum of its proper divisors (20085289).

100426415 is an equidigital number, since it uses as much as digits as its factorization.

100426415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20085288.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 100426415 is about 10021.2980696115. The cubic root of 100426415 is about 464.8176955229.

The spelling of 100426415 in words is "one hundred million, four hundred twenty-six thousand, four hundred fifteen".