106874021 has 2 divisors, whose sum is σ = 106874022. Its totient is φ = 106874020.

The previous prime is 106873997. The next prime is 106874029. The reversal of 106874021 is 120478601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64480900 + 42393121 = 8030^2 + 6511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106874021 is a prime.

It is a super-2 number, since 2×106874021² = 22844112729416882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106874029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53437010 + 53437011.

It is an arithmetic number, because the mean of its divisors is an integer number (53437011).

Almost surely, 2^106874021 is an apocalyptic number.

It is an amenable number.

106874021 is a deficient number, since it is larger than the sum of its proper divisors (1).

106874021 is an equidigital number, since it uses as much as digits as its factorization.

106874021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 106874021 is about 10337.9892145426. The cubic root of 106874021 is about 474.5595488671.

The spelling of 106874021 in words is "one hundred six million, eight hundred seventy-four thousand, twenty-one".