70768129 has 2 divisors, whose sum is σ = 70768130. Its totient is φ = 70768128.

The previous prime is 70768123. The next prime is 70768151. The reversal of 70768129 is 92186707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58553104 + 12215025 = 7652^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 70768129 - 2⁷ = 70768001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70768091 and 70768100.

It is not a weakly prime, because it can be changed into another prime (70768123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35384064 + 35384065.

It is an arithmetic number, because the mean of its divisors is an integer number (35384065).

Almost surely, 2^70768129 is an apocalyptic number.

It is an amenable number.

70768129 is a deficient number, since it is larger than the sum of its proper divisors (1).

70768129 is an equidigital number, since it uses as much as digits as its factorization.

70768129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 70768129 is about 8412.3795087954. The cubic root of 70768129 is about 413.6305154809.

The spelling of 70768129 in words is "seventy million, seven hundred sixty-eight thousand, one hundred twenty-nine".