1005540281494 has 32 divisors (see below), whose sum is σ = 1780632078336. Its totient is φ = 416753069760.

The previous prime is 1005540281453. The next prime is 1005540281497. The reversal of 1005540281494 is 4941820455001.

It is a super-2 number, since 2×1005540281494² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005540281494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005540281497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186492 + ... + 1430335.

It is an arithmetic number, because the mean of its divisors is an integer number (55644752448).

Almost surely, 2^{1005540281494} is an apocalyptic number.

1005540281494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1005540281494 is a deficient number, since it is larger than the sum of its proper divisors (775091796842).

1005540281494 is a wasteful number, since it uses less digits than its factorization.

1005540281494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618300.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 1005540281494 in words is "one trillion, five billion, five hundred forty million, two hundred eighty-one thousand, four hundred ninety-four".