31439144127 has 32 divisors (see below), whose sum is σ = 43148851200. Its totient is φ = 20356035552.

The previous prime is 31439144057. The next prime is 31439144129. The reversal of 31439144127 is 72144193413.

It is a happy number.

It is not a de Polignac number, because 31439144127 - 2⁷ = 31439143999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31439144129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3560524 + ... + 3569342.

It is an arithmetic number, because the mean of its divisors is an integer number (1348401600).

Almost surely, 2^31439144127 is an apocalyptic number.

31439144127 is a deficient number, since it is larger than the sum of its proper divisors (11709707073).

31439144127 is a wasteful number, since it uses less digits than its factorization.

31439144127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9147.

The product of its digits is 72576, while the sum is 39.

The spelling of 31439144127 in words is "thirty-one billion, four hundred thirty-nine million, one hundred forty-four thousand, one hundred twenty-seven".