1100001493 has 4 divisors (see below), whose sum is σ = 1101285900. Its totient is φ = 1098717088.

The previous prime is 1100001491. The next prime is 1100001499. The reversal of 1100001493 is 3941000011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 687383524 + 412617969 = 26218^2 + 20313^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100001493 - 2¹ = 1100001491 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100001493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640918 + ... + 642631.

It is an arithmetic number, because the mean of its divisors is an integer number (275321475).

Almost surely, 2^1100001493 is an apocalyptic number.

It is an amenable number.

1100001493 is a deficient number, since it is larger than the sum of its proper divisors (1284407).

1100001493 is an equidigital number, since it uses as much as digits as its factorization.

1100001493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284406.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1100001493 is about 33166.2704113682. The cubic root of 1100001493 is about 1032.2805824847.

The spelling of 1100001493 in words is "one billion, one hundred million, one thousand, four hundred ninety-three".