145113242 has 4 divisors (see below), whose sum is σ = 217669866. Its totient is φ = 72556620.

The previous prime is 145113229. The next prime is 145113257. The reversal of 145113242 is 242311541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 111112681 + 34000561 = 10541^2 + 5831^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36278309 + ... + 36278312.

Almost surely, 2^145113242 is an apocalyptic number.

145113242 is a deficient number, since it is larger than the sum of its proper divisors (72556624).

145113242 is an equidigital number, since it uses as much as digits as its factorization.

145113242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72556623.

The product of its digits is 960, while the sum is 23.

The square root of 145113242 is about 12046.2957792012. The cubic root of 145113242 is about 525.4955164424.

Adding to 145113242 its reverse (242311541), we get a palindrome (387424783).

The spelling of 145113242 in words is "one hundred forty-five million, one hundred thirteen thousand, two hundred forty-two".