1142265165531 has 32 divisors (see below), whose sum is σ = 1742852751360. Its totient is φ = 651876678144.

The previous prime is 1142265165487. The next prime is 1142265165577. The reversal of 1142265165531 is 1355615622411.

It is not a de Polignac number, because 1142265165531 - 2¹⁸ = 1142264903387 is a prime.

It is a super-2 number, since 2×1142265165531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142265165931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57817551 + ... + 57837303.

It is an arithmetic number, because the mean of its divisors is an integer number (54464148480).

Almost surely, 2^{1142265165531} is an apocalyptic number.

1142265165531 is a deficient number, since it is larger than the sum of its proper divisors (600587585829).

1142265165531 is a wasteful number, since it uses less digits than its factorization.

1142265165531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23195.

The product of its digits is 216000, while the sum is 42.

The spelling of 1142265165531 in words is "one trillion, one hundred forty-two billion, two hundred sixty-five million, one hundred sixty-five thousand, five hundred thirty-one".