144311994 has 24 divisors (see below), whose sum is σ = 317977920. Its totient is φ = 47288328.

The previous prime is 144311977. The next prime is 144312001. The reversal of 144311994 is 499113441.

It is a super-2 number, since 2×144311994² = 41651903224512072, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66882 + ... + 69005.

It is an arithmetic number, because the mean of its divisors is an integer number (13249080).

Almost surely, 2^144311994 is an apocalyptic number.

144311994 is an abundant number, since it is smaller than the sum of its proper divisors (173665926).

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

144311994 is a wasteful number, since it uses less digits than its factorization.

144311994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135954 (or 135951 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 144311994 is about 12012.9927162219. The cubic root of 144311994 is about 524.5265500374.

The spelling of 144311994 in words is "one hundred forty-four million, three hundred eleven thousand, nine hundred ninety-four".