144121402 has 8 divisors (see below), whose sum is σ = 216244512. Its totient is φ = 72039900.

The previous prime is 144121357. The next prime is 144121433. The reversal of 144121402 is 204121441.

144121402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×144121402³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144121402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577 + ... + 16987.

It is an arithmetic number, because the mean of its divisors is an integer number (27030564).

Almost surely, 2^144121402 is an apocalyptic number.

144121402 is a deficient number, since it is larger than the sum of its proper divisors (72123110).

144121402 is a wasteful number, since it uses less digits than its factorization.

144121402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 144121402 is about 12005.0573509667. The cubic root of 144121402 is about 524.2955352665.

Adding to 144121402 its reverse (204121441), we get a palindrome (348242843).

The spelling of 144121402 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred two".