197465531 has 2 divisors, whose sum is σ = 197465532. Its totient is φ = 197465530.

The previous prime is 197465509. The next prime is 197465551. The reversal of 197465531 is 135564791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197465531 - 2¹⁰ = 197464507 is a prime.

It is a super-2 number, since 2×197465531² = 77985271866223922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197465501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98732765 + 98732766.

It is an arithmetic number, because the mean of its divisors is an integer number (98732766).

Almost surely, 2^197465531 is an apocalyptic number.

197465531 is a deficient number, since it is larger than the sum of its proper divisors (1).

197465531 is an equidigital number, since it uses as much as digits as its factorization.

197465531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 41.

The square root of 197465531 is about 14052.2429170578. The cubic root of 197465531 is about 582.3227613799.

The spelling of 197465531 in words is "one hundred ninety-seven million, four hundred sixty-five thousand, five hundred thirty-one".