144235402 has 8 divisors (see below), whose sum is σ = 216562500. Its totient is φ = 72047904.

The previous prime is 144235363. The next prime is 144235423. The reversal of 144235402 is 204532441.

It is a happy number.

144235402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 144216081 + 19321 = 12009^2 + 139^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32277 + ... + 36472.

Almost surely, 2^144235402 is an apocalyptic number.

144235402 is a deficient number, since it is larger than the sum of its proper divisors (72327098).

144235402 is a wasteful number, since it uses less digits than its factorization.

144235402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69800.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 144235402 is about 12009.8044113965. The cubic root of 144235402 is about 524.4337380544.

Adding to 144235402 its reverse (204532441), we get a palindrome (348767843).

The spelling of 144235402 in words is "one hundred forty-four million, two hundred thirty-five thousand, four hundred two".