201170970 has 432 divisors, whose sum is σ = 745060680. Its totient is φ = 37255680.

The previous prime is 201170897. The next prime is 201170989. The reversal of 201170970 is 79071102.

It can be written as a sum of positive squares in 4 ways, for example, as 128119761 + 73051209 = 11319^2 + 8547^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 6936916 + ... + 6936944.

Almost surely, 2^201170970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201170970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372530340).

201170970 is an abundant number, since it is smaller than the sum of its proper divisors (543889710).

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

201170970 is a wasteful number, since it uses less digits than its factorization.

201170970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 201170970 is about 14183.4752441001. The cubic root of 201170970 is about 585.9426398056.

It can be divided in two parts, 201 and 170970, that added together give a palindrome (171171).

The spelling of 201170970 in words is "two hundred one million, one hundred seventy thousand, nine hundred seventy".