109902461 has 2 divisors, whose sum is σ = 109902462. Its totient is φ = 109902460.

The previous prime is 109902439. The next prime is 109902491. The reversal of 109902461 is 164209901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109599961 + 302500 = 10469^2 + 550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109902461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109902421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54951230 + 54951231.

It is an arithmetic number, because the mean of its divisors is an integer number (54951231).

Almost surely, 2^109902461 is an apocalyptic number.

It is an amenable number.

109902461 is a deficient number, since it is larger than the sum of its proper divisors (1).

109902461 is an equidigital number, since it uses as much as digits as its factorization.

109902461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 109902461 is about 10483.4374610621. The cubic root of 109902461 is about 479.0003225228. Note that the first 3 decimals are identical.

The spelling of 109902461 in words is "one hundred nine million, nine hundred two thousand, four hundred sixty-one".