197980150 has 24 divisors (see below), whose sum is σ = 368619264. Its totient is φ = 79111200.

The previous prime is 197980141. The next prime is 197980151. The reversal of 197980150 is 51089791.

It is a happy number.

It is a super-2 number, since 2×197980150² = 78392279588045000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197980151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81960 + ... + 84340.

It is an arithmetic number, because the mean of its divisors is an integer number (15359136).

Almost surely, 2^197980150 is an apocalyptic number.

197980150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197980150 is a deficient number, since it is larger than the sum of its proper divisors (170639114).

197980150 is a wasteful number, since it uses less digits than its factorization.

197980150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 197980150 is about 14070.5419227548. The cubic root of 197980150 is about 582.8281903574.

The spelling of 197980150 in words is "one hundred ninety-seven million, nine hundred eighty thousand, one hundred fifty".