197496531 has 18 divisors (see below), whose sum is σ = 303044612. Its totient is φ = 123917760.

The previous prime is 197496527. The next prime is 197496539. The reversal of 197496531 is 135694791.

It is not a de Polignac number, because 197496531 - 2² = 197496527 is a prime.

It is a super-2 number, since 2×197496531² = 78009759514067922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (197496539) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35365 + ... + 40566.

Almost surely, 2^197496531 is an apocalyptic number.

197496531 is a deficient number, since it is larger than the sum of its proper divisors (105548081).

197496531 is a wasteful number, since it uses less digits than its factorization.

197496531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75971 (or 75951 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 197496531 is about 14053.3459005320. The cubic root of 197496531 is about 582.3532326238.

The spelling of 197496531 in words is "one hundred ninety-seven million, four hundred ninety-six thousand, five hundred thirty-one".