195215830 has 16 divisors (see below), whose sum is σ = 354869424. Its totient is φ = 77312800.

The previous prime is 195215827. The next prime is 195215843. The reversal of 195215830 is 38512591.

195215830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95632 + ... + 97651.

It is an arithmetic number, because the mean of its divisors is an integer number (22179339).

Almost surely, 2^195215830 is an apocalyptic number.

195215830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195215830 is a deficient number, since it is larger than the sum of its proper divisors (159653594).

195215830 is a wasteful number, since it uses less digits than its factorization.

195215830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193391.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 195215830 is about 13971.9658602503. The cubic root of 195215830 is about 580.1028652274.

The spelling of 195215830 in words is "one hundred ninety-five million, two hundred fifteen thousand, eight hundred thirty".