1087449251 has 8 divisors (see below), whose sum is σ = 1315905120. Its totient is φ = 877269888.

The previous prime is 1087449241. The next prime is 1087449313. The reversal of 1087449251 is 1529447801.

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 1087449251 - 2²² = 1083254947 is a prime.

It is a super-2 number, since 2×1087449251² = 2365091747000922002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1087449199 and 1087449208.

It is not an unprimeable number, because it can be changed into a prime (1087449241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4568996 + ... + 4569233.

It is an arithmetic number, because the mean of its divisors is an integer number (164488140).

Almost surely, 2^1087449251 is an apocalyptic number.

1087449251 is a deficient number, since it is larger than the sum of its proper divisors (228455869).

1087449251 is an equidigital number, since it uses as much as digits as its factorization.

1087449251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9138253.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1087449251 is about 32976.4954323530. The cubic root of 1087449251 is about 1028.3390615351.

The spelling of 1087449251 in words is "one billion, eighty-seven million, four hundred forty-nine thousand, two hundred fifty-one".