100471481 has 4 divisors (see below), whose sum is σ = 109605264. Its totient is φ = 91337700.

The previous prime is 100471451. The next prime is 100471493. The reversal of 100471481 is 184174001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184174001 = 11 ⋅16743091.

It is a cyclic number.

It is not a de Polignac number, because 100471481 - 2¹⁸ = 100209337 is a prime.

It is a super-2 number, since 2×100471481² = 20189036988666722, 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 100471481.

It is not an unprimeable number, because it can be changed into a prime (100471451) 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, 4566875 + ... + 4566896.

It is an arithmetic number, because the mean of its divisors is an integer number (27401316).

Almost surely, 2^100471481 is an apocalyptic number.

100471481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100471481 is a deficient number, since it is larger than the sum of its proper divisors (9133783).

100471481 is an equidigital number, since it uses as much as digits as its factorization.

100471481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133782.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 100471481 is about 10023.5463285207. The cubic root of 100471481 is about 464.8872135599.

The spelling of 100471481 in words is "one hundred million, four hundred seventy-one thousand, four hundred eighty-one".