100551013 has 4 divisors (see below), whose sum is σ = 101285100. Its totient is φ = 99816928.

The previous prime is 100550999. The next prime is 100551029. The reversal of 100551013 is 310155001.

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 79602084 + 20948929 = 8922^2 + 4577^2 .

It is a cyclic number.

It is not a de Polignac number, because 100551013 - 2⁹ = 100550501 is a prime.

It is a super-2 number, since 2×100551013² = 20221012430652338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100551313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366838 + ... + 367111.

It is an arithmetic number, because the mean of its divisors is an integer number (25321275).

Almost surely, 2^100551013 is an apocalyptic number.

It is an amenable number.

100551013 is a deficient number, since it is larger than the sum of its proper divisors (734087).

100551013 is an equidigital number, since it uses as much as digits as its factorization.

100551013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734086.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 100551013 is about 10027.5128022855. The cubic root of 100551013 is about 465.0098475581.

The spelling of 100551013 in words is "one hundred million, five hundred fifty-one thousand, thirteen".