109902437 has 2 divisors, whose sum is σ = 109902438. Its totient is φ = 109902436.

The previous prime is 109902421. The next prime is 109902439. The reversal of 109902437 is 734209901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 51076 = 10481^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 109902437 - 2⁴ = 109902421 is a prime.

Together with 109902439, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 109902397 and 109902406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109902439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54951218 + 54951219.

It is an arithmetic number, because the mean of its divisors is an integer number (54951219).

Almost surely, 2^109902437 is an apocalyptic number.

It is an amenable number.

109902437 is a deficient number, since it is larger than the sum of its proper divisors (1).

109902437 is an equidigital number, since it uses as much as digits as its factorization.

109902437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 109902437 is about 10483.4363163993. The cubic root of 109902437 is about 479.0002876555. Note that the first 3 decimals are identical.

The spelling of 109902437 in words is "one hundred nine million, nine hundred two thousand, four hundred thirty-seven".