145134242 has 8 divisors (see below), whose sum is σ = 237492432. Its totient is φ = 65970100.

The previous prime is 145134233. The next prime is 145134247. The reversal of 145134242 is 242431541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145134247) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3298484 + ... + 3298527.

It is an arithmetic number, because the mean of its divisors is an integer number (29686554).

Almost surely, 2^145134242 is an apocalyptic number.

145134242 is a deficient number, since it is larger than the sum of its proper divisors (92358190).

145134242 is a wasteful number, since it uses less digits than its factorization.

145134242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6597024.

The product of its digits is 3840, while the sum is 26.

The square root of 145134242 is about 12047.1673849084. The cubic root of 145134242 is about 525.5208641717.

Adding to 145134242 its reverse (242431541), we get a palindrome (387565783).

The spelling of 145134242 in words is "one hundred forty-five million, one hundred thirty-four thousand, two hundred forty-two".