100021413 has 8 divisors (see below), whose sum is σ = 133494400. Its totient is φ = 66614688.

The previous prime is 100021409. The next prime is 100021429. The reversal of 100021413 is 314120001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100021413 - 2² = 100021409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100020413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12928 + ... + 19161.

It is an arithmetic number, because the mean of its divisors is an integer number (16686800).

Almost surely, 2^100021413 is an apocalyptic number.

It is an amenable number.

100021413 is a deficient number, since it is larger than the sum of its proper divisors (33472987).

100021413 is a wasteful number, since it uses less digits than its factorization.

100021413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33131.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100021413 is about 10001.0705926916. The cubic root of 100021413 is about 464.1920111107.

Adding to 100021413 its reverse (314120001), we get a palindrome (414141414).

The spelling of 100021413 in words is "one hundred million, twenty-one thousand, four hundred thirteen".