70811130 has 64 divisors (see below), whose sum is σ = 188955648. Its totient is φ = 16865280.

The previous prime is 70811129. The next prime is 70811131. The reversal of 70811130 is 3111807.

It is an interprime number because it is at equal distance from previous prime (70811129) and next prime (70811131).

It is a super-2 number, since 2×70811130² = 10028432263753800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70811097 and 70811106.

It is not an unprimeable number, because it can be changed into a prime (70811131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9162 + ... + 15018.

It is an arithmetic number, because the mean of its divisors is an integer number (2952432).

Almost surely, 2^70811130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70811130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94477824).

70811130 is an abundant number, since it is smaller than the sum of its proper divisors (118144518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70811130 is a wasteful number, since it uses less digits than its factorization.

70811130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 70811130 is about 8414.9349373599. The cubic root of 70811130 is about 413.7142769363.

Adding to 70811130 its reverse (3111807), we get a palindrome (73922937).

The spelling of 70811130 in words is "seventy million, eight hundred eleven thousand, one hundred thirty".