1087512442 has 4 divisors (see below), whose sum is σ = 1631268666. Its totient is φ = 543756220.

The previous prime is 1087512421. The next prime is 1087512497. The reversal of 1087512442 is 2442157801.

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

It can be written as a sum of positive squares in only one way, i.e., 808321761 + 279190681 = 28431^2 + 16709^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1087512398 and 1087512407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271878109 + ... + 271878112.

Almost surely, 2^1087512442 is an apocalyptic number.

1087512442 is a deficient number, since it is larger than the sum of its proper divisors (543756224).

1087512442 is an equidigital number, since it uses as much as digits as its factorization.

1087512442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543756223.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 1087512442 is about 32977.4535402599. The cubic root of 1087512442 is about 1028.3589798639.

The spelling of 1087512442 in words is "one billion, eighty-seven million, five hundred twelve thousand, four hundred forty-two".