1142215434 has 12 divisors (see below), whose sum is σ = 2474800146. Its totient is φ = 380738472.

The previous prime is 1142215391. The next prime is 1142215447. The reversal of 1142215434 is 4345122411.

1142215434 is a `hidden beast` number, since 1 + 1 + 4 + 221 + 5 + 434 = 666.

It can be written as a sum of positive squares in only one way, i.e., 755975025 + 386240409 = 27495^2 + 19653^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1142215398 and 1142215407.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 31728189 + ... + 31728224.

Almost surely, 2^1142215434 is an apocalyptic number.

1142215434 is an abundant number, since it is smaller than the sum of its proper divisors (1332584712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142215434 is a wasteful number, since it uses less digits than its factorization.

1142215434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63456421 (or 63456418 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1142215434 is about 33796.6778544874. The cubic root of 1142215434 is about 1045.3201964390.

Adding to 1142215434 its reverse (4345122411), we get a palindrome (5487337845).

The spelling of 1142215434 in words is "one billion, one hundred forty-two million, two hundred fifteen thousand, four hundred thirty-four".