144719931 has 8 divisors (see below), whose sum is σ = 194189584. Its totient is φ = 95865120.

The previous prime is 144719923. The next prime is 144719957. The reversal of 144719931 is 139917441.

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

It is not a de Polignac number, because 144719931 - 2³ = 144719923 is a prime.

It is a super-2 number, since 2×144719931² = 41887716857289522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144719931.

It is not an unprimeable number, because it can be changed into a prime (144719921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153160 + ... + 154101.

It is an arithmetic number, because the mean of its divisors is an integer number (24273698).

Almost surely, 2^144719931 is an apocalyptic number.

144719931 is a deficient number, since it is larger than the sum of its proper divisors (49469653).

144719931 is a wasteful number, since it uses less digits than its factorization.

144719931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307421.

The product of its digits is 27216, while the sum is 39.

The square root of 144719931 is about 12029.9597256184. The cubic root of 144719931 is about 525.0203239298.

The spelling of 144719931 in words is "one hundred forty-four million, seven hundred nineteen thousand, nine hundred thirty-one".