144142431 has 8 divisors (see below), whose sum is σ = 192320640. Its totient is φ = 96029592.

The previous prime is 144142409. The next prime is 144142463. The reversal of 144142431 is 134241441.

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

It is not a de Polignac number, because 144142431 - 2⁵ = 144142399 is a prime.

It is a super-2 number, since 2×144142431² = 41554080829179522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144142331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10941 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (24040080).

Almost surely, 2^144142431 is an apocalyptic number.

144142431 is a deficient number, since it is larger than the sum of its proper divisors (48178209).

144142431 is a wasteful number, since it uses less digits than its factorization.

144142431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32685.

The product of its digits is 1536, while the sum is 24.

The square root of 144142431 is about 12005.9331582347. The cubic root of 144142431 is about 524.3210343121.

Adding to 144142431 its reverse (134241441), we get a palindrome (278383872).

The spelling of 144142431 in words is "one hundred forty-four million, one hundred forty-two thousand, four hundred thirty-one".