144189954 has 24 divisors (see below), whose sum is σ = 330789420. Its totient is φ = 45235968.

The previous prime is 144189949. The next prime is 144189973. The reversal of 144189954 is 459981441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 143352729 + 837225 = 11973^2 + 915^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235299 + ... + 235910.

Almost surely, 2^144189954 is an apocalyptic number.

144189954 is an abundant number, since it is smaller than the sum of its proper divisors (186599466).

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

144189954 is a wasteful number, since it uses less digits than its factorization.

144189954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471234 (or 471231 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 144189954 is about 12007.9121415840. The cubic root of 144189954 is about 524.3786499415.

The spelling of 144189954 in words is "one hundred forty-four million, one hundred eighty-nine thousand, nine hundred fifty-four".