142343145 has 48 divisors (see below), whose sum is σ = 283076352. Its totient is φ = 64817280.

The previous prime is 142343111. The next prime is 142343147. The reversal of 142343145 is 541343241.

It is a happy number.

It is not a de Polignac number, because 142343145 - 2⁶ = 142343081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142343147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97239 + ... + 98691.

It is an arithmetic number, because the mean of its divisors is an integer number (5897424).

Almost surely, 2^142343145 is an apocalyptic number.

142343145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142343145 is a deficient number, since it is larger than the sum of its proper divisors (140733207).

142343145 is a wasteful number, since it uses less digits than its factorization.

142343145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782 (or 1779 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 142343145 is about 11930.7646443973. The cubic root of 142343145 is about 522.1302467079.

Adding to 142343145 its reverse (541343241), we get a palindrome (683686386).

The spelling of 142343145 in words is "one hundred forty-two million, three hundred forty-three thousand, one hundred forty-five".