31954541 has 2 divisors, whose sum is σ = 31954542. Its totient is φ = 31954540.

The previous prime is 31954451. The next prime is 31954553. The reversal of 31954541 is 14545913.

Together with previous prime (31954451) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31922500 + 32041 = 5650^2 + 179^2 .

It is a cyclic number.

It is not a de Polignac number, because 31954541 - 2²² = 27760237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31954498 and 31954507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31954591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15977270 + 15977271.

It is an arithmetic number, because the mean of its divisors is an integer number (15977271).

Almost surely, 2^31954541 is an apocalyptic number.

It is an amenable number.

31954541 is a deficient number, since it is larger than the sum of its proper divisors (1).

31954541 is an equidigital number, since it uses as much as digits as its factorization.

31954541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 31954541 is about 5652.8347755794. The cubic root of 31954541 is about 317.3298023474.

The spelling of 31954541 in words is "thirty-one million, nine hundred fifty-four thousand, five hundred forty-one".