1142424145 has 16 divisors (see below), whose sum is σ = 1441452672. Its totient is φ = 867518080.

The previous prime is 1142424119. The next prime is 1142424149. The reversal of 1142424145 is 5414242411.

It is a happy number.

It is not a de Polignac number, because 1142424145 - 2²⁷ = 1008206417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142424149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22852 + ... + 52981.

It is an arithmetic number, because the mean of its divisors is an integer number (90090792).

Almost surely, 2^1142424145 is an apocalyptic number.

It is an amenable number.

1142424145 is a deficient number, since it is larger than the sum of its proper divisors (299028527).

1142424145 is a wasteful number, since it uses less digits than its factorization.

1142424145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75992.

The product of its digits is 5120, while the sum is 28.

The square root of 1142424145 is about 33799.7654577661. The cubic root of 1142424145 is about 1045.3838611763.

Adding to 1142424145 its reverse (5414242411), we get a palindrome (6556666556).

The spelling of 1142424145 in words is "one billion, one hundred forty-two million, four hundred twenty-four thousand, one hundred forty-five".