70513152 has 80 divisors (see below), whose sum is σ = 194451840. Its totient is φ = 22679552.

The previous prime is 70513151. The next prime is 70513159. The reversal of 70513152 is 25131507.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (70513151) 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, 43753 + ... + 45335.

It is an arithmetic number, because the mean of its divisors is an integer number (2430648).

Almost surely, 2^70513152 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 70513152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97225920).

70513152 is an abundant number, since it is smaller than the sum of its proper divisors (123938688).

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

70513152 is a wasteful number, since it uses less digits than its factorization.

70513152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 70513152 is about 8397.2109655528. The cubic root of 70513152 is about 413.1331485244.

Adding to 70513152 its reverse (25131507), we get a palindrome (95644659).

The spelling of 70513152 in words is "seventy million, five hundred thirteen thousand, one hundred fifty-two".