144952238 has 4 divisors (see below), whose sum is σ = 217428360. Its totient is φ = 72476118.

The previous prime is 144952211. The next prime is 144952259. The reversal of 144952238 is 832259441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832259441 = 13 ⋅64019957.

It is a super-2 number, since 2×144952238² = 42022302602417288, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36238058 + ... + 36238061.

It is an arithmetic number, because the mean of its divisors is an integer number (54357090).

Almost surely, 2^144952238 is an apocalyptic number.

144952238 is a deficient number, since it is larger than the sum of its proper divisors (72476122).

144952238 is an equidigital number, since it uses as much as digits as its factorization.

144952238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72476121.

The product of its digits is 69120, while the sum is 38.

The square root of 144952238 is about 12039.6112063472. The cubic root of 144952238 is about 525.3010977275.

The spelling of 144952238 in words is "one hundred forty-four million, nine hundred fifty-two thousand, two hundred thirty-eight".