197113520 has 20 divisors (see below), whose sum is σ = 458289120. Its totient is φ = 78845376.

The previous prime is 197113517. The next prime is 197113523. The reversal of 197113520 is 25311791.

It is an interprime number because it is at equal distance from previous prime (197113517) and next prime (197113523).

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (197113523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231880 + ... + 1232039.

It is an arithmetic number, because the mean of its divisors is an integer number (22914456).

Almost surely, 2^197113520 is an apocalyptic number.

197113520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197113520 is an abundant number, since it is smaller than the sum of its proper divisors (261175600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197113520 is a wasteful number, since it uses less digits than its factorization.

197113520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463932 (or 2463926 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 197113520 is about 14039.7122477635. The cubic root of 197113520 is about 581.9765305857.

The spelling of 197113520 in words is "one hundred ninety-seven million, one hundred thirteen thousand, five hundred twenty".