197507140 has 12 divisors (see below), whose sum is σ = 414765036. Its totient is φ = 79002848.

The previous prime is 197507137. The next prime is 197507159. The reversal of 197507140 is 41705791.

It can be written as a sum of positive squares in 2 ways, for example, as 28922884 + 168584256 = 5378^2 + 12984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 197507096 and 197507105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4937659 + ... + 4937698.

It is an arithmetic number, because the mean of its divisors is an integer number (34563753).

Almost surely, 2^197507140 is an apocalyptic number.

197507140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197507140 is an abundant number, since it is smaller than the sum of its proper divisors (217257896).

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

197507140 is a wasteful number, since it uses less digits than its factorization.

197507140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875366 (or 9875364 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 197507140 is about 14053.7233500592. The cubic root of 197507140 is about 582.3636599374.

The spelling of 197507140 in words is "one hundred ninety-seven million, five hundred seven thousand, one hundred forty".