195101215 has 16 divisors (see below), whose sum is σ = 251100000. Its totient is φ = 145072512.

The previous prime is 195101213. The next prime is 195101233. The reversal of 195101215 is 512101591.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 195101215 - 2¹ = 195101213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195101215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195101213) 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, 14340 + ... + 24409.

It is an arithmetic number, because the mean of its divisors is an integer number (15693750).

Almost surely, 2^195101215 is an apocalyptic number.

195101215 is a deficient number, since it is larger than the sum of its proper divisors (55998785).

195101215 is a wasteful number, since it uses less digits than its factorization.

195101215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38826.

The product of its (nonzero) digits is 450, while the sum is 25.

The square root of 195101215 is about 13967.8636519691. The cubic root of 195101215 is about 579.9893131206.

The spelling of 195101215 in words is "one hundred ninety-five million, one hundred one thousand, two hundred fifteen".