197113505 has 32 divisors (see below), whose sum is σ = 258656640. Its totient is φ = 143700480.

The previous prime is 197113481. The next prime is 197113507. The reversal of 197113505 is 505311791.

197113505 = 2120² + 2121² + ... + 2162².

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-197113505 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197113507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297875 + ... + 298535.

It is an arithmetic number, because the mean of its divisors is an integer number (8083020).

Almost surely, 2^197113505 is an apocalyptic number.

It is an amenable number.

197113505 is a deficient number, since it is larger than the sum of its proper divisors (61543135).

197113505 is a wasteful number, since it uses less digits than its factorization.

197113505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 4725, while the sum is 32.

The square root of 197113505 is about 14039.7117135645. The cubic root of 197113505 is about 581.9765158232.

The spelling of 197113505 in words is "one hundred ninety-seven million, one hundred thirteen thousand, five hundred five".