100779481 has 8 divisors (see below), whose sum is σ = 113488128. Its totient is φ = 88662000.

The previous prime is 100779467. The next prime is 100779499. The reversal of 100779481 is 184977001.

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

It is a cyclic number.

It is not a de Polignac number, because 100779481 - 2¹⁵ = 100746713 is a prime.

It is a super-2 number, since 2×100779481² = 20313007581258722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100779481.

It is not an unprimeable number, because it can be changed into a prime (100779461) 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, 147430 + ... + 148111.

It is an arithmetic number, because the mean of its divisors is an integer number (14186016).

Almost surely, 2^100779481 is an apocalyptic number.

100779481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100779481 is a deficient number, since it is larger than the sum of its proper divisors (12708647).

100779481 is a wasteful number, since it uses less digits than its factorization.

100779481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295583.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 100779481 is about 10038.8983957404. The cubic root of 100779481 is about 465.3617734228.

The spelling of 100779481 in words is "one hundred million, seven hundred seventy-nine thousand, four hundred eighty-one".