1142523112 has 16 divisors (see below), whose sum is σ = 2161190340. Its totient is φ = 566205696.

The previous prime is 1142523089. The next prime is 1142523113. The reversal of 1142523112 is 2113252411.

It can be written as a sum of positive squares in 2 ways, for example, as 991872036 + 150651076 = 31494^2 + 12274^2 .

It is a super-2 number, since 2×1142523112² = 2610718122908329088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142523113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631023 + ... + 632830.

Almost surely, 2^1142523112 is an apocalyptic number.

It is an amenable number.

1142523112 is a deficient number, since it is larger than the sum of its proper divisors (1018667228).

1142523112 is a wasteful number, since it uses less digits than its factorization.

1142523112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263972 (or 1263968 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1142523112 is about 33801.2294450956. The cubic root of 1142523112 is about 1045.4140471388.

Adding to 1142523112 its reverse (2113252411), we get a palindrome (3255775523).

The spelling of 1142523112 in words is "one billion, one hundred forty-two million, five hundred twenty-three thousand, one hundred twelve".