106151021 has 2 divisors, whose sum is σ = 106151022. Its totient is φ = 106151020.

The previous prime is 106151011. The next prime is 106151029. The reversal of 106151021 is 120151601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57304900 + 48846121 = 7570^2 + 6989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106151021 is a prime.

It is a super-2 number, since 2×106151021² = 22536078518684882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106151029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53075510 + 53075511.

It is an arithmetic number, because the mean of its divisors is an integer number (53075511).

Almost surely, 2^106151021 is an apocalyptic number.

It is an amenable number.

106151021 is a deficient number, since it is larger than the sum of its proper divisors (1).

106151021 is an equidigital number, since it uses as much as digits as its factorization.

106151021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 106151021 is about 10302.9617586401. The cubic root of 106151021 is about 473.4869989186.

The spelling of 106151021 in words is "one hundred six million, one hundred fifty-one thousand, twenty-one".