144274574 has 4 divisors (see below), whose sum is σ = 216411864. Its totient is φ = 72137286.

The previous prime is 144274573. The next prime is 144274583. The reversal of 144274574 is 475472441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 475472441 = 17393 ⋅27337.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144274573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36068642 + ... + 36068645.

It is an arithmetic number, because the mean of its divisors is an integer number (54102966).

Almost surely, 2^144274574 is an apocalyptic number.

144274574 is a deficient number, since it is larger than the sum of its proper divisors (72137290).

144274574 is an equidigital number, since it uses as much as digits as its factorization.

144274574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72137289.

The product of its digits is 125440, while the sum is 38.

The square root of 144274574 is about 12011.4351349037. The cubic root of 144274574 is about 524.4812096614.

The spelling of 144274574 in words is "one hundred forty-four million, two hundred seventy-four thousand, five hundred seventy-four".