70751971 has 2 divisors, whose sum is σ = 70751972. Its totient is φ = 70751970.

The previous prime is 70751957. The next prime is 70751987. The reversal of 70751971 is 17915707.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70751971 - 2¹⁵ = 70719203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70751971.

It is not a weakly prime, because it can be changed into another prime (70751911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35375985 + 35375986.

It is an arithmetic number, because the mean of its divisors is an integer number (35375986).

Almost surely, 2^70751971 is an apocalyptic number.

70751971 is a deficient number, since it is larger than the sum of its proper divisors (1).

70751971 is an equidigital number, since it uses as much as digits as its factorization.

70751971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15435, while the sum is 37.

The square root of 70751971 is about 8411.4190836030. The cubic root of 70751971 is about 413.5990326147.

The spelling of 70751971 in words is "seventy million, seven hundred fifty-one thousand, nine hundred seventy-one".