197516256 has 144 divisors (see below), whose sum is σ = 609033600. Its totient is φ = 55883520.

The previous prime is 197516237. The next prime is 197516261. The reversal of 197516256 is 652615791.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 935991 + ... + 936201.

It is an arithmetic number, because the mean of its divisors is an integer number (4229400).

Almost surely, 2^197516256 is an apocalyptic number.

197516256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197516256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304516800).

197516256 is an abundant number, since it is smaller than the sum of its proper divisors (411517344).

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

197516256 is a wasteful number, since it uses less digits than its factorization.

197516256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 422 counting only the distinct ones).

The product of its digits is 113400, while the sum is 42.

The square root of 197516256 is about 14054.0476731794. The cubic root of 197516256 is about 582.3726195215.

The spelling of 197516256 in words is "one hundred ninety-seven million, five hundred sixteen thousand, two hundred fifty-six".