42471313 has 2 divisors, whose sum is σ = 42471314. Its totient is φ = 42471312.

The previous prime is 42471307. The next prime is 42471337. The reversal of 42471313 is 31317424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35438209 + 7033104 = 5953^2 + 2652^2 .

It is a cyclic number.

It is not a de Polignac number, because 42471313 - 2⁵ = 42471281 is a prime.

It is not a weakly prime, because it can be changed into another prime (42471383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21235656 + 21235657.

It is an arithmetic number, because the mean of its divisors is an integer number (21235657).

Almost surely, 2^42471313 is an apocalyptic number.

It is an amenable number.

42471313 is a deficient number, since it is larger than the sum of its proper divisors (1).

42471313 is an equidigital number, since it uses as much as digits as its factorization.

42471313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 42471313 is about 6517.0018413378. The cubic root of 42471313 is about 348.8980663055.

Adding to 42471313 its reverse (31317424), we get a palindrome (73788737).

The spelling of 42471313 in words is "forty-two million, four hundred seventy-one thousand, three hundred thirteen".