1087902745 has 8 divisors (see below), whose sum is σ = 1305957384. Its totient is φ = 870006144.

The previous prime is 1087902719. The next prime is 1087902757. The reversal of 1087902745 is 5472097801.

It can be written as a sum of positive squares in 4 ways, for example, as 47775744 + 1040127001 = 6912^2 + 32251^2 .

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 1087902745 - 2⁵ = 1087902713 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23794 + ... + 52363.

It is an arithmetic number, because the mean of its divisors is an integer number (163244673).

Almost surely, 2^1087902745 is an apocalyptic number.

It is an amenable number.

1087902745 is a deficient number, since it is larger than the sum of its proper divisors (218054639).

1087902745 is an equidigital number, since it uses as much as digits as its factorization.

1087902745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79019.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 1087902745 is about 32983.3707343564. The cubic root of 1087902745 is about 1028.4819895179.

The spelling of 1087902745 in words is "one billion, eighty-seven million, nine hundred two thousand, seven hundred forty-five".