1971082523 has 2 divisors, whose sum is σ = 1971082524. Its totient is φ = 1971082522.

The previous prime is 1971082501. The next prime is 1971082567. The reversal of 1971082523 is 3252801791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1971082523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1971082123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985541261 + 985541262.

It is an arithmetic number, because the mean of its divisors is an integer number (985541262).

Almost surely, 2^1971082523 is an apocalyptic number.

1971082523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1971082523 is an equidigital number, since it uses as much as digits as its factorization.

1971082523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 1971082523 is about 44396.8751490462. The cubic root of 1971082523 is about 1253.8192569760.

The spelling of 1971082523 in words is "one billion, nine hundred seventy-one million, eighty-two thousand, five hundred twenty-three".