144197418 has 16 divisors (see below), whose sum is σ = 293836896. Its totient is φ = 47158800.

The previous prime is 144197413. The next prime is 144197423. The reversal of 144197418 is 814791441.

It is an interprime number because it is at equal distance from previous prime (144197413) and next prime (144197423).

It is not an unprimeable number, because it can be changed into a prime (144197413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226408 + ... + 227043.

It is an arithmetic number, because the mean of its divisors is an integer number (18364806).

Almost surely, 2^144197418 is an apocalyptic number.

144197418 is an abundant number, since it is smaller than the sum of its proper divisors (149639478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144197418 is a wasteful number, since it uses less digits than its factorization.

144197418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453509.

The product of its digits is 32256, while the sum is 39.

The square root of 144197418 is about 12008.2229326408. Note that the first 3 decimals coincide. The cubic root of 144197418 is about 524.3876979475.

The spelling of 144197418 in words is "one hundred forty-four million, one hundred ninety-seven thousand, four hundred eighteen".