106506437 has 2 divisors, whose sum is σ = 106506438. Its totient is φ = 106506436.

The previous prime is 106506401. The next prime is 106506451. The reversal of 106506437 is 734605601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100620961 + 5885476 = 10031^2 + 2426^2 .

It is an emirp because it is prime and its reverse (734605601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106506437 is a prime.

It is a super-2 number, since 2×106506437² = 22687242244869938, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106506487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53253218 + 53253219.

It is an arithmetic number, because the mean of its divisors is an integer number (53253219).

Almost surely, 2^106506437 is an apocalyptic number.

It is an amenable number.

106506437 is a deficient number, since it is larger than the sum of its proper divisors (1).

106506437 is an equidigital number, since it uses as much as digits as its factorization.

106506437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 106506437 is about 10320.1955892318. The cubic root of 106506437 is about 474.0148550004.

The spelling of 106506437 in words is "one hundred six million, five hundred six thousand, four hundred thirty-seven".