144020465542 has 32 divisors (see below), whose sum is σ = 220129695360. Its totient is φ = 70657466880.

The previous prime is 144020465489. The next prime is 144020465549. The reversal of 144020465542 is 245564020441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144020465549) 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, 25455978 + ... + 25461634.

It is an arithmetic number, because the mean of its divisors is an integer number (6879052980).

Almost surely, 2^144020465542 is an apocalyptic number.

144020465542 is a deficient number, since it is larger than the sum of its proper divisors (76109229818).

144020465542 is a wasteful number, since it uses less digits than its factorization.

144020465542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 144020465542 its reverse (245564020441), we get a palindrome (389584485983).

The spelling of 144020465542 in words is "one hundred forty-four billion, twenty million, four hundred sixty-five thousand, five hundred forty-two".