70736143 has 2 divisors, whose sum is σ = 70736144. Its totient is φ = 70736142.

The previous prime is 70736137. The next prime is 70736173. The reversal of 70736143 is 34163707.

It is a weak prime.

It is an emirp because it is prime and its reverse (34163707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70736143 - 2¹⁷ = 70605071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70736123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35368071 + 35368072.

It is an arithmetic number, because the mean of its divisors is an integer number (35368072).

Almost surely, 2^70736143 is an apocalyptic number.

70736143 is a deficient number, since it is larger than the sum of its proper divisors (1).

70736143 is an equidigital number, since it uses as much as digits as its factorization.

70736143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 70736143 is about 8410.4781671436. The cubic root of 70736143 is about 413.5681880855.

The spelling of 70736143 in words is "seventy million, seven hundred thirty-six thousand, one hundred forty-three".