70508147 has 2 divisors, whose sum is σ = 70508148. Its totient is φ = 70508146.

The previous prime is 70508143. The next prime is 70508149. The reversal of 70508147 is 74180507.

It is a strong prime.

It is an emirp because it is prime and its reverse (74180507) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70508147 - 2² = 70508143 is a prime.

Together with 70508149, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70508143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35254073 + 35254074.

It is an arithmetic number, because the mean of its divisors is an integer number (35254074).

Almost surely, 2^70508147 is an apocalyptic number.

70508147 is a deficient number, since it is larger than the sum of its proper divisors (1).

70508147 is an equidigital number, since it uses as much as digits as its factorization.

70508147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 70508147 is about 8396.9129446482. The cubic root of 70508147 is about 413.1233736088.

The spelling of 70508147 in words is "seventy million, five hundred eight thousand, one hundred forty-seven".