31405414045 has 4 divisors (see below), whose sum is σ = 37686496860. Its totient is φ = 25124331232.

The previous prime is 31405414037. The next prime is 31405414091. The reversal of 31405414045 is 54041450413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12107481156 + 19297932889 = 110034^2 + 138917^2 .

It is a cyclic number.

It is not a de Polignac number, because 31405414045 - 2³ = 31405414037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31405413998 and 31405414016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140541400 + ... + 3140541409.

It is an arithmetic number, because the mean of its divisors is an integer number (9421624215).

Almost surely, 2^31405414045 is an apocalyptic number.

It is an amenable number.

31405414045 is a deficient number, since it is larger than the sum of its proper divisors (6281082815).

31405414045 is an equidigital number, since it uses as much as digits as its factorization.

31405414045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281082814.

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

Adding to 31405414045 its reverse (54041450413), we get a palindrome (85446864458).

The spelling of 31405414045 in words is "thirty-one billion, four hundred five million, four hundred fourteen thousand, forty-five".