106374781 has 2 divisors, whose sum is σ = 106374782. Its totient is φ = 106374780.

The previous prime is 106374769. The next prime is 106374809. The reversal of 106374781 is 187473601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89019225 + 17355556 = 9435^2 + 4166^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106374781 is a prime.

It is a super-2 number, since 2×106374781² = 22631188065595922, 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 106374781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106374721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53187390 + 53187391.

It is an arithmetic number, because the mean of its divisors is an integer number (53187391).

Almost surely, 2^106374781 is an apocalyptic number.

It is an amenable number.

106374781 is a deficient number, since it is larger than the sum of its proper divisors (1).

106374781 is an equidigital number, since it uses as much as digits as its factorization.

106374781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 106374781 is about 10313.8150555456. The cubic root of 106374781 is about 473.8194595120.

The spelling of 106374781 in words is "one hundred six million, three hundred seventy-four thousand, seven hundred eighty-one".