197515030 has 32 divisors (see below), whose sum is σ = 375192000. Its totient is φ = 74714112.

The previous prime is 197515001. The next prime is 197515033. The reversal of 197515030 is 30515791.

It is a junction number, because it is equal to n+sod(n) for n = 197514983 and 197515001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197515033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15646 + ... + 25294.

It is an arithmetic number, because the mean of its divisors is an integer number (11724750).

Almost surely, 2^197515030 is an apocalyptic number.

197515030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197515030 is a deficient number, since it is larger than the sum of its proper divisors (177676970).

197515030 is a wasteful number, since it uses less digits than its factorization.

197515030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9768.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 197515030 is about 14054.0040557842. The cubic root of 197515030 is about 582.3714145737.

The spelling of 197515030 in words is "one hundred ninety-seven million, five hundred fifteen thousand, thirty".