78010313 has 2 divisors, whose sum is σ = 78010314. Its totient is φ = 78010312.

The previous prime is 78010301. The next prime is 78010337. The reversal of 78010313 is 31301087.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77933584 + 76729 = 8828^2 + 277^2 .

It is an emirp because it is prime and its reverse (31301087) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78010313 - 2⁸ = 78010057 is a prime.

It is equal to p_4560125 and since 78010313 and 4560125 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (78010343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39005156 + 39005157.

It is an arithmetic number, because the mean of its divisors is an integer number (39005157).

Almost surely, 2^78010313 is an apocalyptic number.

It is an amenable number.

78010313 is a deficient number, since it is larger than the sum of its proper divisors (1).

78010313 is an equidigital number, since it uses as much as digits as its factorization.

78010313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 78010313 is about 8832.3447056826. The cubic root of 78010313 is about 427.2846980788.

The spelling of 78010313 in words is "seventy-eight million, ten thousand, three hundred thirteen".