70140512 has 48 divisors (see below), whose sum is σ = 149904720. Its totient is φ = 32113152.

The previous prime is 70140479. The next prime is 70140523. The reversal of 70140512 is 21504107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57218 + ... + 58430.

It is an arithmetic number, because the mean of its divisors is an integer number (3123015).

Almost surely, 2^70140512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70140512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74952360).

70140512 is an abundant number, since it is smaller than the sum of its proper divisors (79764208).

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

70140512 is a wasteful number, since it uses less digits than its factorization.

70140512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 70140512 is about 8374.9932537286. The cubic root of 70140512 is about 412.4041028378.

Adding to 70140512 its reverse (21504107), we get a palindrome (91644619).

The spelling of 70140512 in words is "seventy million, one hundred forty thousand, five hundred twelve".