70115830 has 16 divisors (see below), whose sum is σ = 126679104. Its totient is φ = 27941760.

The previous prime is 70115821. The next prime is 70115839. The reversal of 70115830 is 3851107.

It is an interprime number because it is at equal distance from previous prime (70115821) and next prime (70115839).

It is a junction number, because it is equal to n+sod(n) for n = 70115795 and 70115804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70115839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10227 + ... + 15646.

It is an arithmetic number, because the mean of its divisors is an integer number (7917444).

Almost surely, 2^70115830 is an apocalyptic number.

70115830 is a deficient number, since it is larger than the sum of its proper divisors (56563274).

70115830 is a wasteful number, since it uses less digits than its factorization.

70115830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26151.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 70115830 is about 8373.5195706465. The cubic root of 70115830 is about 412.3557230357.

Adding to 70115830 its reverse (3851107), we get a palindrome (73966937).

The spelling of 70115830 in words is "seventy million, one hundred fifteen thousand, eight hundred thirty".