31300141 has 2 divisors, whose sum is σ = 31300142. Its totient is φ = 31300140.

The previous prime is 31300123. The next prime is 31300151. The reversal of 31300141 is 14100313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 3316041 = 5290^2 + 1821^2 .

It is an emirp because it is prime and its reverse (14100313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31300141 - 2⁷ = 31300013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31300151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15650070 + 15650071.

It is an arithmetic number, because the mean of its divisors is an integer number (15650071).

Almost surely, 2^31300141 is an apocalyptic number.

It is an amenable number.

31300141 is a deficient number, since it is larger than the sum of its proper divisors (1).

31300141 is an equidigital number, since it uses as much as digits as its factorization.

31300141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31300141 is about 5594.6528936119. The cubic root of 31300141 is about 315.1486356572.

Adding to 31300141 its reverse (14100313), we get a palindrome (45400454).

The spelling of 31300141 in words is "thirty-one million, three hundred thousand, one hundred forty-one".