106073921 has 2 divisors, whose sum is σ = 106073922. Its totient is φ = 106073920.

The previous prime is 106073893. The next prime is 106073939. The reversal of 106073921 is 129370601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102232321 + 3841600 = 10111^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 106073921 - 2¹⁴ = 106057537 is a prime.

It is a super-2 number, since 2×106073921² = 22503353432628482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (106073021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53036960 + 53036961.

It is an arithmetic number, because the mean of its divisors is an integer number (53036961).

Almost surely, 2^106073921 is an apocalyptic number.

It is an amenable number.

106073921 is a deficient number, since it is larger than the sum of its proper divisors (1).

106073921 is an equidigital number, since it uses as much as digits as its factorization.

106073921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 106073921 is about 10299.2194364427. The cubic root of 106073921 is about 473.3723362139.

The spelling of 106073921 in words is "one hundred six million, seventy-three thousand, nine hundred twenty-one".