144136542 has 32 divisors (see below), whose sum is σ = 315062784. Its totient is φ = 43596800.

The previous prime is 144136541. The next prime is 144136543. The reversal of 144136542 is 245631441.

It is an interprime number because it is at equal distance from previous prime (144136541) and next prime (144136543).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144136541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40603 + ... + 44009.

It is an arithmetic number, because the mean of its divisors is an integer number (9845712).

Almost surely, 2^144136542 is an apocalyptic number.

144136542 is an abundant number, since it is smaller than the sum of its proper divisors (170926242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144136542 is a wasteful number, since it uses less digits than its factorization.

144136542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064.

The product of its digits is 11520, while the sum is 30.

The square root of 144136542 is about 12005.6879019905. The cubic root of 144136542 is about 524.3138937623.

Adding to 144136542 its reverse (245631441), we get a palindrome (389767983).

The spelling of 144136542 in words is "one hundred forty-four million, one hundred thirty-six thousand, five hundred forty-two".