70523197 has 2 divisors, whose sum is σ = 70523198. Its totient is φ = 70523196.

The previous prime is 70523161. The next prime is 70523203. The reversal of 70523197 is 79132507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 18481401 = 7214^2 + 4299^2 .

It is an emirp because it is prime and its reverse (79132507) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70523197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70523897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35261598 + 35261599.

It is an arithmetic number, because the mean of its divisors is an integer number (35261599).

Almost surely, 2^70523197 is an apocalyptic number.

It is an amenable number.

70523197 is a deficient number, since it is larger than the sum of its proper divisors (1).

70523197 is an equidigital number, since it uses as much as digits as its factorization.

70523197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 70523197 is about 8397.8090595107. The cubic root of 70523197 is about 413.1527653161.

The spelling of 70523197 in words is "seventy million, five hundred twenty-three thousand, one hundred ninety-seven".