70121197 has 2 divisors, whose sum is σ = 70121198. Its totient is φ = 70121196.

The previous prime is 70121167. The next prime is 70121201. The reversal of 70121197 is 79112107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 6584356 = 7971^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 70121197 - 2²³ = 61732589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70121167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35060598 + 35060599.

It is an arithmetic number, because the mean of its divisors is an integer number (35060599).

Almost surely, 2^70121197 is an apocalyptic number.

It is an amenable number.

70121197 is a deficient number, since it is larger than the sum of its proper divisors (1).

70121197 is an equidigital number, since it uses as much as digits as its factorization.

70121197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 70121197 is about 8373.8400390741. The cubic root of 70121197 is about 412.3662439918.

The spelling of 70121197 in words is "seventy million, one hundred twenty-one thousand, one hundred ninety-seven".