31454144005 has 32 divisors (see below), whose sum is σ = 41177373408. Its totient is φ = 22975488000.

The previous prime is 31454143999. The next prime is 31454144021. The reversal of 31454144005 is 50044145413.

It can be written as a sum of positive squares in 16 ways, for example, as 8573648836 + 22880495169 = 92594^2 + 151263^2 .

It is not a de Polignac number, because 31454144005 - 2¹³ = 31454135813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 336955 + ... + 420055.

It is an arithmetic number, because the mean of its divisors is an integer number (1286792919).

Almost surely, 2^31454144005 is an apocalyptic number.

It is an amenable number.

31454144005 is a deficient number, since it is larger than the sum of its proper divisors (9723229403).

31454144005 is a wasteful number, since it uses less digits than its factorization.

31454144005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83257.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 31454144005 its reverse (50044145413), we get a palindrome (81498289418).

The spelling of 31454144005 in words is "thirty-one billion, four hundred fifty-four million, one hundred forty-four thousand, five".