1087532257 has 16 divisors (see below), whose sum is σ = 1278893952. Its totient is φ = 905374080.

The previous prime is 1087532233. The next prime is 1087532261. The reversal of 1087532257 is 7522357801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1087532257 - 2⁷ = 1087532129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1087532657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56803 + ... + 73495.

It is an arithmetic number, because the mean of its divisors is an integer number (79930872).

Almost surely, 2^1087532257 is an apocalyptic number.

It is an amenable number.

1087532257 is a deficient number, since it is larger than the sum of its proper divisors (191361695).

1087532257 is a wasteful number, since it uses less digits than its factorization.

1087532257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16968.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 1087532257 is about 32977.7539714275. The cubic root of 1087532257 is about 1028.3652255577.

The spelling of 1087532257 in words is "one billion, eighty-seven million, five hundred thirty-two thousand, two hundred fifty-seven".