105418454381 has 2 divisors, whose sum is σ = 105418454382. Its totient is φ = 105418454380.

The previous prime is 105418454329. The next prime is 105418454387. The reversal of 105418454381 is 183454814501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71337602281 + 34080852100 = 267091^2 + 184610^2 .

It is a cyclic number.

It is not a de Polignac number, because 105418454381 - 2¹⁸ = 105418192237 is a prime.

It is a super-2 number, since 2×105418454381² (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 (105418454387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52709227190 + 52709227191.

It is an arithmetic number, because the mean of its divisors is an integer number (52709227191).

Almost surely, 2^105418454381 is an apocalyptic number.

It is an amenable number.

105418454381 is a deficient number, since it is larger than the sum of its proper divisors (1).

105418454381 is an equidigital number, since it uses as much as digits as its factorization.

105418454381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 105418454381 in words is "one hundred five billion, four hundred eighteen million, four hundred fifty-four thousand, three hundred eighty-one".