971522735 has 4 divisors (see below), whose sum is σ = 1165827288. Its totient is φ = 777218184.

The previous prime is 971522729. The next prime is 971522743. The reversal of 971522735 is 537225179.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 971522735 - 2¹⁰ = 971521711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971522692 and 971522701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97152269 + ... + 97152278.

It is an arithmetic number, because the mean of its divisors is an integer number (291456822).

Almost surely, 2^971522735 is an apocalyptic number.

971522735 is a deficient number, since it is larger than the sum of its proper divisors (194304553).

971522735 is a wasteful number, since it uses less digits than its factorization.

971522735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194304552.

The product of its digits is 132300, while the sum is 41.

The square root of 971522735 is about 31169.2594554314. The cubic root of 971522735 is about 990.4160190812.

The spelling of 971522735 in words is "nine hundred seventy-one million, five hundred twenty-two thousand, seven hundred thirty-five".