70120512 has 448 divisors, whose sum is σ = 280903680. Its totient is φ = 16588800.

The previous prime is 70120511. The next prime is 70120541. The reversal of 70120512 is 21502107.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70120511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2261937 + ... + 2261967.

Almost surely, 2^70120512 is an apocalyptic number.

70120512 is a gapful number since it is divisible by the number (72) 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 70120512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140451840).

70120512 is an abundant number, since it is smaller than the sum of its proper divisors (210783168).

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

70120512 is a wasteful number, since it uses less digits than its factorization.

70120512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 70120512 is about 8373.7991377869. The cubic root of 70120512 is about 412.3649012129.

Adding to 70120512 its reverse (21502107), we get a palindrome (91622619).

The spelling of 70120512 in words is "seventy million, one hundred twenty thousand, five hundred twelve".