1087225145 has 4 divisors (see below), whose sum is σ = 1304670180. Its totient is φ = 869780112.

The previous prime is 1087225121. The next prime is 1087225151. The reversal of 1087225145 is 5415227801.

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 382906624 + 704318521 = 19568^2 + 26539^2 .

It is a cyclic number.

It is not a de Polignac number, because 1087225145 - 2⁶ = 1087225081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108722510 + ... + 108722519.

It is an arithmetic number, because the mean of its divisors is an integer number (326167545).

Almost surely, 2^1087225145 is an apocalyptic number.

It is an amenable number.

1087225145 is a deficient number, since it is larger than the sum of its proper divisors (217445035).

1087225145 is an equidigital number, since it uses as much as digits as its factorization.

1087225145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217445034.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 1087225145 is about 32973.0972915800. The cubic root of 1087225145 is about 1028.2684152386.

The spelling of 1087225145 in words is "one billion, eighty-seven million, two hundred twenty-five thousand, one hundred forty-five".