78413143 has 2 divisors, whose sum is σ = 78413144. Its totient is φ = 78413142.

The previous prime is 78413107. The next prime is 78413147. The reversal of 78413143 is 34131487.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78413143 - 2²¹ = 76315991 is a prime.

It is a super-2 number, since 2×78413143² = 12297241990276898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78413147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39206571 + 39206572.

It is an arithmetic number, because the mean of its divisors is an integer number (39206572).

Almost surely, 2^78413143 is an apocalyptic number.

78413143 is a deficient number, since it is larger than the sum of its proper divisors (1).

78413143 is an equidigital number, since it uses as much as digits as its factorization.

78413143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 78413143 is about 8855.1195926424. The cubic root of 78413143 is about 428.0189072935.

The spelling of 78413143 in words is "seventy-eight million, four hundred thirteen thousand, one hundred forty-three".