1087168073 has 4 divisors (see below), whose sum is σ = 1091209860. Its totient is φ = 1083126288.

The previous prime is 1087168051. The next prime is 1087168079. The reversal of 1087168073 is 3708617801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3708617801 = 7 ⋅529802543.

It can be written as a sum of positive squares in 2 ways, for example, as 330257929 + 756910144 = 18173^2 + 27512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087168073 - 2¹⁸ = 1086905929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1087168073.

It is not an unprimeable number, because it can be changed into a prime (1087168079) 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, 2020490 + ... + 2021027.

It is an arithmetic number, because the mean of its divisors is an integer number (272802465).

Almost surely, 2^1087168073 is an apocalyptic number.

It is an amenable number.

1087168073 is a deficient number, since it is larger than the sum of its proper divisors (4041787).

1087168073 is an equidigital number, since it uses as much as digits as its factorization.

1087168073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041786.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1087168073 is about 32972.2318474197. The cubic root of 1087168073 is about 1028.2504225342.

The spelling of 1087168073 in words is "one billion, eighty-seven million, one hundred sixty-eight thousand, seventy-three".