31426201 has 2 divisors, whose sum is σ = 31426202. Its totient is φ = 31426200.

The previous prime is 31426193. The next prime is 31426223. The reversal of 31426201 is 10262413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30969225 + 456976 = 5565^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 31426201 - 2³ = 31426193 is a prime.

It is a super-2 number, since 2×31426201² = 1975212218584802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31426231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15713100 + 15713101.

It is an arithmetic number, because the mean of its divisors is an integer number (15713101).

Almost surely, 2^31426201 is an apocalyptic number.

It is an amenable number.

31426201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31426201 is an equidigital number, since it uses as much as digits as its factorization.

31426201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 31426201 is about 5605.9076874312. The cubic root of 31426201 is about 315.5711515624.

Adding to 31426201 its reverse (10262413), we get a palindrome (41688614).

The spelling of 31426201 in words is "thirty-one million, four hundred twenty-six thousand, two hundred one".