1142174155 has 32 divisors (see below), whose sum is σ = 1474469568. Its totient is φ = 846336000.

The previous prime is 1142174153. The next prime is 1142174177. The reversal of 1142174155 is 5514712411.

It is a happy number.

It is not a de Polignac number, because 1142174155 - 2¹ = 1142174153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142174153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2000020 + ... + 2000590.

It is an arithmetic number, because the mean of its divisors is an integer number (46077174).

Almost surely, 2^1142174155 is an apocalyptic number.

1142174155 is a deficient number, since it is larger than the sum of its proper divisors (332295413).

1142174155 is a wasteful number, since it uses less digits than its factorization.

1142174155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its digits is 5600, while the sum is 31.

The square root of 1142174155 is about 33796.0671528508. The cubic root of 1142174155 is about 1045.3076038664.

Adding to 1142174155 its reverse (5514712411), we get a palindrome (6656886566).

The spelling of 1142174155 in words is "one billion, one hundred forty-two million, one hundred seventy-four thousand, one hundred fifty-five".