70703136 has 144 divisors (see below), whose sum is σ = 243419904. Its totient is φ = 19003392.

The previous prime is 70703089. The next prime is 70703159. The reversal of 70703136 is 63130707.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33241 + ... + 35303.

It is an arithmetic number, because the mean of its divisors is an integer number (1690416).

Almost surely, 2^70703136 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 70703136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121709952).

70703136 is an abundant number, since it is smaller than the sum of its proper divisors (172716768).

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

70703136 is a wasteful number, since it uses less digits than its factorization.

70703136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2092 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 70703136 is about 8408.5156835199. The cubic root of 70703136 is about 413.5038514848.

The spelling of 70703136 in words is "seventy million, seven hundred three thousand, one hundred thirty-six".