31341377 has 2 divisors, whose sum is σ = 31341378. Its totient is φ = 31341376.

The previous prime is 31341371. The next prime is 31341389. The reversal of 31341377 is 77314313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24910081 + 6431296 = 4991^2 + 2536^2 .

It is an emirp because it is prime and its reverse (77314313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31341377 - 2⁴ = 31341361 is a prime.

It is a super-2 number, since 2×31341377² = 1964563824512258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31341371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15670688 + 15670689.

It is an arithmetic number, because the mean of its divisors is an integer number (15670689).

Almost surely, 2^31341377 is an apocalyptic number.

It is an amenable number.

31341377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31341377 is an equidigital number, since it uses as much as digits as its factorization.

31341377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 29.

The square root of 31341377 is about 5598.3369852127. The cubic root of 31341377 is about 315.2869712044.

The spelling of 31341377 in words is "thirty-one million, three hundred forty-one thousand, three hundred seventy-seven".