31540054541 has 2 divisors, whose sum is σ = 31540054542. Its totient is φ = 31540054540.

The previous prime is 31540054529. The next prime is 31540054571. The reversal of 31540054541 is 14545004513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31247986441 + 292068100 = 176771^2 + 17090^2 .

It is a cyclic number.

It is not a de Polignac number, because 31540054541 - 2¹⁴ = 31540038157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31540054498 and 31540054507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31540054571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15770027270 + 15770027271.

It is an arithmetic number, because the mean of its divisors is an integer number (15770027271).

Almost surely, 2^31540054541 is an apocalyptic number.

It is an amenable number.

31540054541 is a deficient number, since it is larger than the sum of its proper divisors (1).

31540054541 is an equidigital number, since it uses as much as digits as its factorization.

31540054541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 31540054541 in words is "thirty-one billion, five hundred forty million, fifty-four thousand, five hundred forty-one".