144189998 has 8 divisors (see below), whose sum is σ = 220366008. Its totient is φ = 70734664.

The previous prime is 144189977. The next prime is 144190019. The reversal of 144189998 is 899981441.

It is an interprime number because it is at equal distance from previous prime (144189977) and next prime (144190019).

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

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 680036 + ... + 680247.

It is an arithmetic number, because the mean of its divisors is an integer number (27545751).

Almost surely, 2^144189998 is an apocalyptic number.

144189998 is the 6419-th centered heptagonal number.

144189998 is a deficient number, since it is larger than the sum of its proper divisors (76176010).

144189998 is a wasteful number, since it uses less digits than its factorization.

144189998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360338.

The product of its digits is 746496, while the sum is 53.

The square root of 144189998 is about 12007.9139737092. The cubic root of 144189998 is about 524.3787032800.

The spelling of 144189998 in words is "one hundred forty-four million, one hundred eighty-nine thousand, nine hundred ninety-eight".