145204245242 has 32 divisors (see below), whose sum is σ = 259963748352. Its totient is φ = 59474417904.

The previous prime is 145204245229. The next prime is 145204245253. The reversal of 145204245242 is 242542402541.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192263 + ... + 572165.

It is an arithmetic number, because the mean of its divisors is an integer number (8123867136).

Almost surely, 2^145204245242 is an apocalyptic number.

145204245242 is a deficient number, since it is larger than the sum of its proper divisors (114759503110).

145204245242 is a wasteful number, since it uses less digits than its factorization.

145204245242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381122.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 145204245242 its reverse (242542402541), we get a palindrome (387746647783).

The spelling of 145204245242 in words is "one hundred forty-five billion, two hundred four million, two hundred forty-five thousand, two hundred forty-two".