197375528513 has 2 divisors, whose sum is σ = 197375528514. Its totient is φ = 197375528512.

The previous prime is 197375528507. The next prime is 197375528533. The reversal of 197375528513 is 315825573791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136609334449 + 60766194064 = 369607^2 + 246508^2 .

It is a cyclic number.

It is not a de Polignac number, because 197375528513 - 2⁸ = 197375528257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (197375528533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98687764256 + 98687764257.

It is an arithmetic number, because the mean of its divisors is an integer number (98687764257).

Almost surely, 2^197375528513 is an apocalyptic number.

It is an amenable number.

197375528513 is a deficient number, since it is larger than the sum of its proper divisors (1).

197375528513 is an equidigital number, since it uses as much as digits as its factorization.

197375528513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938000, while the sum is 56.

The spelling of 197375528513 in words is "one hundred ninety-seven billion, three hundred seventy-five million, five hundred twenty-eight thousand, five hundred thirteen".