106431349 has 2 divisors, whose sum is σ = 106431350. Its totient is φ = 106431348.

The previous prime is 106431341. The next prime is 106431361. The reversal of 106431349 is 943134601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96236100 + 10195249 = 9810^2 + 3193^2 .

It is an emirp because it is prime and its reverse (943134601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106431349 - 2³ = 106431341 is a prime.

It is a super-2 number, since 2×106431349² = 22655264099919602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106431349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106431341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53215674 + 53215675.

It is an arithmetic number, because the mean of its divisors is an integer number (53215675).

Almost surely, 2^106431349 is an apocalyptic number.

It is an amenable number.

106431349 is a deficient number, since it is larger than the sum of its proper divisors (1).

106431349 is an equidigital number, since it uses as much as digits as its factorization.

106431349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 106431349 is about 10316.5570322661. The cubic root of 106431349 is about 473.9034338940.

The spelling of 106431349 in words is "one hundred six million, four hundred thirty-one thousand, three hundred forty-nine".