145500242 has 16 divisors (see below), whose sum is σ = 221701632. Its totient is φ = 71604000.

The previous prime is 145500227. The next prime is 145500247. The reversal of 145500242 is 242005541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145500247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108983 + ... + 110309.

It is an arithmetic number, because the mean of its divisors is an integer number (13856352).

Almost surely, 2^145500242 is an apocalyptic number.

145500242 is a deficient number, since it is larger than the sum of its proper divisors (76201390).

145500242 is a wasteful number, since it uses less digits than its factorization.

145500242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 145500242 is about 12062.3481130334. The cubic root of 145500242 is about 525.9622467566.

Adding to 145500242 its reverse (242005541), we get a palindrome (387505783).

The spelling of 145500242 in words is "one hundred forty-five million, five hundred thousand, two hundred forty-two".