144355194 has 24 divisors (see below), whose sum is σ = 331168500. Its totient is φ = 45287808.

The previous prime is 144355193. The next prime is 144355201. The reversal of 144355194 is 491553441.

It is a happy number.

144355194 is a `hidden beast` number, since 14 + 4 + 3 + 551 + 94 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 142491969 + 1863225 = 11937^2 + 1365^2 .

It is not an unprimeable number, because it can be changed into a prime (144355193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235569 + ... + 236180.

Almost surely, 2^144355194 is an apocalyptic number.

144355194 is an abundant number, since it is smaller than the sum of its proper divisors (186813306).

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

144355194 is a wasteful number, since it uses less digits than its factorization.

144355194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471774 (or 471771 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 144355194 is about 12014.7906348800. The cubic root of 144355194 is about 524.5788840712.

The spelling of 144355194 in words is "one hundred forty-four million, three hundred fifty-five thousand, one hundred ninety-four".