195712730 has 16 divisors (see below), whose sum is σ = 370824480. Its totient is φ = 74164752.

The previous prime is 195712717. The next prime is 195712739. The reversal of 195712730 is 37217591.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (195712739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514844 + ... + 515223.

It is an arithmetic number, because the mean of its divisors is an integer number (23176530).

Almost surely, 2^195712730 is an apocalyptic number.

195712730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195712730 is a deficient number, since it is larger than the sum of its proper divisors (175111750).

195712730 is a wasteful number, since it uses less digits than its factorization.

195712730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030093.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 195712730 is about 13989.7365950900. The cubic root of 195712730 is about 580.5946438006.

The spelling of 195712730 in words is "one hundred ninety-five million, seven hundred twelve thousand, seven hundred thirty".