197025769 has 2 divisors, whose sum is σ = 197025770. Its totient is φ = 197025768.

The previous prime is 197025757. The next prime is 197025779. The reversal of 197025769 is 967520791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154057744 + 42968025 = 12412^2 + 6555^2 .

It is a cyclic number.

It is not a de Polignac number, because 197025769 - 2¹⁵ = 196993001 is a prime.

It is a super-2 number, since 2×197025769² = 77638307300082722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197025749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98512884 + 98512885.

It is an arithmetic number, because the mean of its divisors is an integer number (98512885).

Almost surely, 2^197025769 is an apocalyptic number.

It is an amenable number.

197025769 is a deficient number, since it is larger than the sum of its proper divisors (1).

197025769 is an equidigital number, since it uses as much as digits as its factorization.

197025769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 197025769 is about 14036.5868002161. The cubic root of 197025769 is about 581.8901563266.

The spelling of 197025769 in words is "one hundred ninety-seven million, twenty-five thousand, seven hundred sixty-nine".