144731697019 has 32 divisors (see below), whose sum is σ = 183314432000. Its totient is φ = 111193471872.

The previous prime is 144731696987. The next prime is 144731697037. The reversal of 144731697019 is 910796137441.

It is not a de Polignac number, because 144731697019 - 2⁵ = 144731696987 is a prime.

It is a super-2 number, since 2×144731697019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144731692019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1637062 + ... + 1723204.

It is an arithmetic number, because the mean of its divisors is an integer number (5728576000).

Almost surely, 2^144731697019 is an apocalyptic number.

144731697019 is a deficient number, since it is larger than the sum of its proper divisors (38582734981).

144731697019 is a wasteful number, since it uses less digits than its factorization.

144731697019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86699.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The spelling of 144731697019 in words is "one hundred forty-four billion, seven hundred thirty-one million, six hundred ninety-seven thousand, nineteen".