197220130 has 8 divisors (see below), whose sum is σ = 354996252. Its totient is φ = 78888048.

The previous prime is 197220091. The next prime is 197220139. The reversal of 197220130 is 31022791.

It can be written as a sum of positive squares in 2 ways, for example, as 183846481 + 13373649 = 13559^2 + 3657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 197220095 and 197220104.

It is not an unprimeable number, because it can be changed into a prime (197220139) by changing a digit.

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, 9860997 + ... + 9861016.

Almost surely, 2^197220130 is an apocalyptic number.

197220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197220130 is a deficient number, since it is larger than the sum of its proper divisors (157776122).

197220130 is a wasteful number, since it uses less digits than its factorization.

197220130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19722020.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 197220130 is about 14043.5084647676. The cubic root of 197220130 is about 582.0814334788.

The spelling of 197220130 in words is "one hundred ninety-seven million, two hundred twenty thousand, one hundred thirty".