195465253 has 8 divisors (see below), whose sum is σ = 197595288. Its totient is φ = 193342464.

The previous prime is 195465251. The next prime is 195465287. The reversal of 195465253 is 352564591.

It can be written as a sum of positive squares in 4 ways, for example, as 44715969 + 150749284 = 6687^2 + 12278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195465253 - 2¹ = 195465251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195465251) 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, 65551 + ... + 68467.

It is an arithmetic number, because the mean of its divisors is an integer number (24699411).

Almost surely, 2^195465253 is an apocalyptic number.

It is an amenable number.

195465253 is a deficient number, since it is larger than the sum of its proper divisors (2130035).

195465253 is a wasteful number, since it uses less digits than its factorization.

195465253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623.

The product of its digits is 162000, while the sum is 40.

The square root of 195465253 is about 13980.8888487106. Note that the first 4 decimals coincide. The cubic root of 195465253 is about 580.3498216650.

The spelling of 195465253 in words is "one hundred ninety-five million, four hundred sixty-five thousand, two hundred fifty-three".