70818147 has 12 divisors (see below), whose sum is σ = 102946480. Its totient is φ = 46910448.

The previous prime is 70818109. The next prime is 70818157. The reversal of 70818147 is 74181807.

It is not a de Polignac number, because 70818147 - 2⁷ = 70818019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70818157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23647 + ... + 26472.

Almost surely, 2^70818147 is an apocalyptic number.

70818147 is a deficient number, since it is larger than the sum of its proper divisors (32128333).

70818147 is a wasteful number, since it uses less digits than its factorization.

70818147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50282 (or 50279 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 70818147 is about 8415.3518643013. The cubic root of 70818147 is about 413.7279421007.

The spelling of 70818147 in words is "seventy million, eight hundred eighteen thousand, one hundred forty-seven".