144557194 has 8 divisors (see below), whose sum is σ = 218418948. Its totient is φ = 71750880.

The previous prime is 144557089. The next prime is 144557197. The reversal of 144557194 is 491755441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 144312169 + 245025 = 12013^2 + 495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144557197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263517 + ... + 264064.

Almost surely, 2^144557194 is an apocalyptic number.

144557194 is a deficient number, since it is larger than the sum of its proper divisors (73861754).

144557194 is a wasteful number, since it uses less digits than its factorization.

144557194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527720.

The product of its digits is 100800, while the sum is 40.

The square root of 144557194 is about 12023.1940015954. The cubic root of 144557194 is about 524.8234556808.

The spelling of 144557194 in words is "one hundred forty-four million, five hundred fifty-seven thousand, one hundred ninety-four".