31010461 has 2 divisors, whose sum is σ = 31010462. Its totient is φ = 31010460.

The previous prime is 31010401. The next prime is 31010467. The reversal of 31010461 is 16401013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24810361 + 6200100 = 4981^2 + 2490^2 .

It is an emirp because it is prime and its reverse (16401013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31010461 - 2¹¹ = 31008413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31010467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505230 + 15505231.

It is an arithmetic number, because the mean of its divisors is an integer number (15505231).

Almost surely, 2^31010461 is an apocalyptic number.

It is an amenable number.

31010461 is a deficient number, since it is larger than the sum of its proper divisors (1).

31010461 is an equidigital number, since it uses as much as digits as its factorization.

31010461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 31010461 is about 5568.7037091230. The cubic root of 31010461 is about 314.1733967308.

Adding to 31010461 its reverse (16401013), we get a palindrome (47411474).

The spelling of 31010461 in words is "thirty-one million, ten thousand, four hundred sixty-one".