971897150 has 24 divisors (see below), whose sum is σ = 2065976400. Its totient is φ = 333221760.

The previous prime is 971897141. The next prime is 971897153. The reversal of 971897150 is 51798179.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 971897095 and 971897104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971897153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1388075 + ... + 1388774.

It is an arithmetic number, because the mean of its divisors is an integer number (86082350).

Almost surely, 2^971897150 is an apocalyptic number.

971897150 is an abundant number, since it is smaller than the sum of its proper divisors (1094079250).

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

971897150 is a wasteful number, since it uses less digits than its factorization.

971897150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776868 (or 2776863 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 47.

The square root of 971897150 is about 31175.2650349600. The cubic root of 971897150 is about 990.5432348334.

The spelling of 971897150 in words is "nine hundred seventy-one million, eight hundred ninety-seven thousand, one hundred fifty".