1087174745 has 8 divisors (see below), whose sum is σ = 1306874184. Its totient is φ = 868230144.

The previous prime is 1087174709. The next prime is 1087174747. The reversal of 1087174745 is 5474717801.

It can be written as a sum of positive squares in 4 ways, for example, as 550418521 + 536756224 = 23461^2 + 23168^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1087174745 - 2⁸ = 1087174489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1087174696 and 1087174705.

It is not an unprimeable number, because it can be changed into a prime (1087174747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185534 + ... + 191303.

It is an arithmetic number, because the mean of its divisors is an integer number (163359273).

Almost surely, 2^1087174745 is an apocalyptic number.

It is an amenable number.

1087174745 is a deficient number, since it is larger than the sum of its proper divisors (219699439).

1087174745 is an equidigital number, since it uses as much as digits as its factorization.

1087174745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377419.

The product of its (nonzero) digits is 219520, while the sum is 44.

The square root of 1087174745 is about 32972.3330233091. Note that the first 3 decimals coincide. The cubic root of 1087174745 is about 1028.2525260031.

The spelling of 1087174745 in words is "one billion, eighty-seven million, one hundred seventy-four thousand, seven hundred forty-five".