31795229 has 2 divisors, whose sum is σ = 31795230. Its totient is φ = 31795228.

The previous prime is 31795217. The next prime is 31795237. The reversal of 31795229 is 92259713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29539225 + 2256004 = 5435^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 31795229 - 2¹⁶ = 31729693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31795192 and 31795201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31795249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15897614 + 15897615.

It is an arithmetic number, because the mean of its divisors is an integer number (15897615).

Almost surely, 2^31795229 is an apocalyptic number.

It is an amenable number.

31795229 is a deficient number, since it is larger than the sum of its proper divisors (1).

31795229 is an equidigital number, since it uses as much as digits as its factorization.

31795229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 38.

The square root of 31795229 is about 5638.7258312495. The cubic root of 31795229 is about 316.8015655479.

The spelling of 31795229 in words is "thirty-one million, seven hundred ninety-five thousand, two hundred twenty-nine".