144142015 has 8 divisors (see below), whose sum is σ = 175902480. Its totient is φ = 113358912.

The previous prime is 144142001. The next prime is 144142039. The reversal of 144142015 is 510241441.

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

It is a cyclic number.

It is not a de Polignac number, because 144142015 - 2⁵ = 144141983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244014 + ... + 244603.

It is an arithmetic number, because the mean of its divisors is an integer number (21987810).

Almost surely, 2^144142015 is an apocalyptic number.

144142015 is a deficient number, since it is larger than the sum of its proper divisors (31760465).

144142015 is an equidigital number, since it uses as much as digits as its factorization.

144142015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488681.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144142015 is about 12005.9158334548. The cubic root of 144142015 is about 524.3205299088.

Adding to 144142015 its reverse (510241441), we get a palindrome (654383456).

The spelling of 144142015 in words is "one hundred forty-four million, one hundred forty-two thousand, fifteen".