144271922 has 4 divisors (see below), whose sum is σ = 216407886. Its totient is φ = 72135960.

The previous prime is 144271913. The next prime is 144271943. The reversal of 144271922 is 229172441.

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: 229172441 = 1409 ⋅162649.

It can be written as a sum of positive squares in only one way, i.e., 85581001 + 58690921 = 9251^2 + 7661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36067979 + ... + 36067982.

Almost surely, 2^144271922 is an apocalyptic number.

144271922 is a deficient number, since it is larger than the sum of its proper divisors (72135964).

144271922 is an equidigital number, since it uses as much as digits as its factorization.

144271922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72135963.

The product of its digits is 8064, while the sum is 32.

The square root of 144271922 is about 12011.3247395947. The cubic root of 144271922 is about 524.4779960374.

The spelling of 144271922 in words is "one hundred forty-four million, two hundred seventy-one thousand, nine hundred twenty-two".