31414133 has 2 divisors, whose sum is σ = 31414134. Its totient is φ = 31414132.

The previous prime is 31414121. The next prime is 31414153. The reversal of 31414133 is 33141413.

It is an a-pointer prime, because the next prime (31414153) can be obtained adding 31414133 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23251684 + 8162449 = 4822^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 31414133 - 2⁶ = 31414069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31414153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15707066 + 15707067.

It is an arithmetic number, because the mean of its divisors is an integer number (15707067).

Almost surely, 2^31414133 is an apocalyptic number.

It is an amenable number.

31414133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31414133 is an equidigital number, since it uses as much as digits as its factorization.

31414133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 31414133 is about 5604.8312195819. The cubic root of 31414133 is about 315.5307521492.

Adding to 31414133 its reverse (33141413), we get a palindrome (64555546).

The spelling of 31414133 in words is "thirty-one million, four hundred fourteen thousand, one hundred thirty-three".