31426051 has 2 divisors, whose sum is σ = 31426052. Its totient is φ = 31426050.

The previous prime is 31426039. The next prime is 31426067. The reversal of 31426051 is 15062413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31426051 - 2⁹ = 31425539 is a prime.

It is not a weakly prime, because it can be changed into another prime (31426001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15713025 + 15713026.

It is an arithmetic number, because the mean of its divisors is an integer number (15713026).

Almost surely, 2^31426051 is an apocalyptic number.

31426051 is a deficient number, since it is larger than the sum of its proper divisors (1).

31426051 is an equidigital number, since it uses as much as digits as its factorization.

31426051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 31426051 is about 5605.8943086719. The cubic root of 31426051 is about 315.5706494788.

Adding to 31426051 its reverse (15062413), we get a palindrome (46488464).

The spelling of 31426051 in words is "thirty-one million, four hundred twenty-six thousand, fifty-one".