105450337981 has 2 divisors, whose sum is σ = 105450337982. Its totient is φ = 105450337980.

The previous prime is 105450337807. The next prime is 105450338027. The reversal of 105450337981 is 189733054501.

It is a happy number.

It is an a-pointer prime, because the next prime (105450338027) can be obtained adding 105450337981 to its sum of digits (46).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84934359225 + 20515978756 = 291435^2 + 143234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105450337981 is a prime.

It is a super-2 number, since 2×105450337981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105450335981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52725168990 + 52725168991.

It is an arithmetic number, because the mean of its divisors is an integer number (52725168991).

Almost surely, 2^105450337981 is an apocalyptic number.

It is an amenable number.

105450337981 is a deficient number, since it is larger than the sum of its proper divisors (1).

105450337981 is an equidigital number, since it uses as much as digits as its factorization.

105450337981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 105450337981 in words is "one hundred five billion, four hundred fifty million, three hundred thirty-seven thousand, nine hundred eighty-one".