31542341 has 2 divisors, whose sum is σ = 31542342. Its totient is φ = 31542340.

The previous prime is 31542323. The next prime is 31542359. The reversal of 31542341 is 14324513.

It is a balanced prime because it is at equal distance from previous prime (31542323) and next prime (31542359).

It can be written as a sum of positive squares in only one way, i.e., 30481441 + 1060900 = 5521^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 31542341 - 2¹⁴ = 31525957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31542391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15771170 + 15771171.

It is an arithmetic number, because the mean of its divisors is an integer number (15771171).

Almost surely, 2^31542341 is an apocalyptic number.

It is an amenable number.

31542341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542341 is an equidigital number, since it uses as much as digits as its factorization.

31542341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 31542341 is about 5616.2568495396. The cubic root of 31542341 is about 315.9594196942.

Adding to 31542341 its reverse (14324513), we get a palindrome (45866854).

The spelling of 31542341 in words is "thirty-one million, five hundred forty-two thousand, three hundred forty-one".