197137252 has 12 divisors (see below), whose sum is σ = 371527996. Its totient is φ = 90986400.

The previous prime is 197137189. The next prime is 197137261. The reversal of 197137252 is 252731791.

It can be written as a sum of positive squares in 2 ways, for example, as 93586276 + 103550976 = 9674^2 + 10176^2 .

It is a super-2 number, since 2×197137252² = 77726192252223008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1895499 + ... + 1895602.

Almost surely, 2^197137252 is an apocalyptic number.

It is an amenable number.

197137252 is a deficient number, since it is larger than the sum of its proper divisors (174390744).

197137252 is a wasteful number, since it uses less digits than its factorization.

197137252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791118 (or 3791116 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 197137252 is about 14040.5573963429. The cubic root of 197137252 is about 581.9998858461. Note that the first 3 decimals are identical.

The spelling of 197137252 in words is "one hundred ninety-seven million, one hundred thirty-seven thousand, two hundred fifty-two".