1142165451 has 24 divisors (see below), whose sum is σ = 1875733200. Its totient is φ = 614272512.

The previous prime is 1142165447. The next prime is 1142165461. The reversal of 1142165451 is 1545612411.

It is not a de Polignac number, because 1142165451 - 2² = 1142165447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142165461) 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 23 ways as a sum of consecutive naturals, for example, 226026 + ... + 231023.

It is an arithmetic number, because the mean of its divisors is an integer number (78155550).

Almost surely, 2^1142165451 is an apocalyptic number.

1142165451 is a deficient number, since it is larger than the sum of its proper divisors (733567749).

1142165451 is a wasteful number, since it uses less digits than its factorization.

1142165451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457083 (or 457076 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 1142165451 is about 33795.9383802255. The cubic root of 1142165451 is about 1045.3049485853.

Adding to 1142165451 its reverse (1545612411), we get a palindrome (2687777862).

The spelling of 1142165451 in words is "one billion, one hundred forty-two million, one hundred sixty-five thousand, four hundred fifty-one".