100992481 has 2 divisors, whose sum is σ = 100992482. Its totient is φ = 100992480.

The previous prime is 100992469. The next prime is 100992503. The reversal of 100992481 is 184299001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86862400 + 14130081 = 9320^2 + 3759^2 .

It is an emirp because it is prime and its reverse (184299001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100992481 - 2⁵ = 100992449 is a prime.

It is a super-2 number, since 2×100992481² = 20398962437070722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100992421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50496240 + 50496241.

It is an arithmetic number, because the mean of its divisors is an integer number (50496241).

Almost surely, 2^100992481 is an apocalyptic number.

It is an amenable number.

100992481 is a deficient number, since it is larger than the sum of its proper divisors (1).

100992481 is an equidigital number, since it uses as much as digits as its factorization.

100992481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 100992481 is about 10049.5015299267. The cubic root of 100992481 is about 465.6893940400.

The spelling of 100992481 in words is "one hundred million, nine hundred ninety-two thousand, four hundred eighty-one".