1087542651 has 32 divisors (see below), whose sum is σ = 1615409152. Its totient is φ = 646289280.

The previous prime is 1087542647. The next prime is 1087542661. The reversal of 1087542651 is 1562457801.

It is not a de Polignac number, because 1087542651 - 2² = 1087542647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1087542661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 994461 + ... + 995553.

It is an arithmetic number, because the mean of its divisors is an integer number (50481536).

Almost surely, 2^1087542651 is an apocalyptic number.

1087542651 is a deficient number, since it is larger than the sum of its proper divisors (527866501).

1087542651 is a wasteful number, since it uses less digits than its factorization.

1087542651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1087542651 is about 32977.9115621350. The cubic root of 1087542651 is about 1028.3685017193.

The spelling of 1087542651 in words is "one billion, eighty-seven million, five hundred forty-two thousand, six hundred fifty-one".