70188901 has 2 divisors, whose sum is σ = 70188902. Its totient is φ = 70188900.

The previous prime is 70188851. The next prime is 70188917. The reversal of 70188901 is 10988107.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70123876 + 65025 = 8374^2 + 255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70188901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70188301) 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, 35094450 + 35094451.

It is an arithmetic number, because the mean of its divisors is an integer number (35094451).

Almost surely, 2^70188901 is an apocalyptic number.

It is an amenable number.

70188901 is a deficient number, since it is larger than the sum of its proper divisors (1).

70188901 is an equidigital number, since it uses as much as digits as its factorization.

70188901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 70188901 is about 8377.8816534969. The cubic root of 70188901 is about 412.4989183932.

The spelling of 70188901 in words is "seventy million, one hundred eighty-eight thousand, nine hundred one".