144091974 has 16 divisors (see below), whose sum is σ = 310352112. Its totient is φ = 44335968.

The previous prime is 144091973. The next prime is 144091993. The reversal of 144091974 is 479190441.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144091973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 923589 + ... + 923744.

It is an arithmetic number, because the mean of its divisors is an integer number (19397007).

Almost surely, 2^144091974 is an apocalyptic number.

144091974 is an abundant number, since it is smaller than the sum of its proper divisors (166260138).

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

144091974 is a wasteful number, since it uses less digits than its factorization.

144091974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847351.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 144091974 is about 12003.8316382728. The cubic root of 144091974 is about 524.2598477164.

The spelling of 144091974 in words is "one hundred forty-four million, ninety-one thousand, nine hundred seventy-four".