1098254587 has 16 divisors (see below), whose sum is σ = 1229398560. Its totient is φ = 974979072.

The previous prime is 1098254581. The next prime is 1098254611. The reversal of 1098254587 is 7854528901.

It is a happy number.

It is not a de Polignac number, because 1098254587 - 2³ = 1098254579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098254587.

It is not an unprimeable number, because it can be changed into a prime (1098254581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67963 + ... + 82555.

It is an arithmetic number, because the mean of its divisors is an integer number (76837410).

Almost surely, 2^1098254587 is an apocalyptic number.

1098254587 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1098254587 is a deficient number, since it is larger than the sum of its proper divisors (131143973).

1098254587 is a wasteful number, since it uses less digits than its factorization.

1098254587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14862.

The product of its (nonzero) digits is 806400, while the sum is 49.

The square root of 1098254587 is about 33139.9243662384. The cubic root of 1098254587 is about 1031.7338400182.

The spelling of 1098254587 in words is "one billion, ninety-eight million, two hundred fifty-four thousand, five hundred eighty-seven".