145014242 has 4 divisors (see below), whose sum is σ = 217521366. Its totient is φ = 72507120.

The previous prime is 145014229. The next prime is 145014277. The reversal of 145014242 is 242410541.

145014242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242410541 = 173 ⋅1401217.

It can be written as a sum of positive squares in only one way, i.e., 144985681 + 28561 = 12041^2 + 169^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36253559 + ... + 36253562.

Almost surely, 2^145014242 is an apocalyptic number.

145014242 is a deficient number, since it is larger than the sum of its proper divisors (72507124).

145014242 is an equidigital number, since it uses as much as digits as its factorization.

145014242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72507123.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 145014242 is about 12042.1859311339. The cubic root of 145014242 is about 525.3759870536.

Adding to 145014242 its reverse (242410541), we get a palindrome (387424783).

The spelling of 145014242 in words is "one hundred forty-five million, fourteen thousand, two hundred forty-two".