100013278 has 8 divisors (see below), whose sum is σ = 158844672. Its totient is φ = 47065056.

The previous prime is 100013273. The next prime is 100013281. The reversal of 100013278 is 872310001.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100013273) 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, 1470750 + ... + 1470817.

It is an arithmetic number, because the mean of its divisors is an integer number (19855584).

Almost surely, 2^100013278 is an apocalyptic number.

100013278 is a deficient number, since it is larger than the sum of its proper divisors (58831394).

100013278 is a wasteful number, since it uses less digits than its factorization.

100013278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941586.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 100013278 is about 10000.6638779633. The cubic root of 100013278 is about 464.1794261243.

Adding to 100013278 its reverse (872310001), we get a palindrome (972323279).

The spelling of 100013278 in words is "one hundred million, thirteen thousand, two hundred seventy-eight".