31426001 has 2 divisors, whose sum is σ = 31426002. Its totient is φ = 31426000.

The previous prime is 31425941. The next prime is 31426009. The reversal of 31426001 is 10062413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30747025 + 678976 = 5545^2 + 824^2 .

It is an emirp because it is prime and its reverse (10062413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31426001 - 2¹⁰ = 31424977 is a prime.

It is not a weakly prime, because it can be changed into another prime (31426009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15713000 + 15713001.

It is an arithmetic number, because the mean of its divisors is an integer number (15713001).

Almost surely, 2^31426001 is an apocalyptic number.

It is an amenable number.

31426001 is a deficient number, since it is larger than the sum of its proper divisors (1).

31426001 is an equidigital number, since it uses as much as digits as its factorization.

31426001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31426001 is about 5605.8898490784. The cubic root of 31426001 is about 315.5704821172.

Adding to 31426001 its reverse (10062413), we get a palindrome (41488414).

The spelling of 31426001 in words is "thirty-one million, four hundred twenty-six thousand, one".