70112140 has 72 divisors (see below), whose sum is σ = 177251760. Its totient is φ = 23200128.

The previous prime is 70112137. The next prime is 70112149. The reversal of 70112140 is 4121107.

It is not an unprimeable number, because it can be changed into a prime (70112149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27187 + ... + 29653.

It is an arithmetic number, because the mean of its divisors is an integer number (2461830).

Almost surely, 2^70112140 is an apocalyptic number.

70112140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70112140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88625880).

70112140 is an abundant number, since it is smaller than the sum of its proper divisors (107139620).

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

70112140 is a wasteful number, since it uses less digits than its factorization.

70112140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 70112140 is about 8373.2992302915. The cubic root of 70112140 is about 412.3484891994.

Adding to 70112140 its reverse (4121107), we get a palindrome (74233247).

The spelling of 70112140 in words is "seventy million, one hundred twelve thousand, one hundred forty".