1085287502531 has 32 divisors (see below), whose sum is σ = 1149926197056. Its totient is φ = 1022886144000.

The previous prime is 1085287502513. The next prime is 1085287502543. The reversal of 1085287502531 is 1352057825801.

It is a cyclic number.

It is not a de Polignac number, because 1085287502531 - 2¹⁴ = 1085287486147 is a prime.

It is a super-2 number, since 2×1085287502531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1085287502561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430497551 + ... + 430500071.

It is an arithmetic number, because the mean of its divisors is an integer number (35935193658).

Almost surely, 2^{1085287502531} is an apocalyptic number.

1085287502531 is a deficient number, since it is larger than the sum of its proper divisors (64638694525).

1085287502531 is a wasteful number, since it uses less digits than its factorization.

1085287502531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503.

The product of its (nonzero) digits is 672000, while the sum is 47.

The spelling of 1085287502531 in words is "one trillion, eighty-five billion, two hundred eighty-seven million, five hundred two thousand, five hundred thirty-one".