195475351 has 4 divisors (see below), whose sum is σ = 195510304. Its totient is φ = 195440400.

The previous prime is 195475349. The next prime is 195475387. The reversal of 195475351 is 153574591.

It is a semiprime because it is the product of two primes.

It is a 4-Lehmer number, since φ(195475351) divides (195475351-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 195475351 - 2¹ = 195475349 is a prime.

It is a super-2 number, since 2×195475351² = 76421225697146402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195475391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6990 + ... + 20971.

It is an arithmetic number, because the mean of its divisors is an integer number (48877576).

It is a Poulet number, since it divides 2^195475350-1.

Almost surely, 2^195475351 is an apocalyptic number.

195475351 is the 6991-st decagonal number.

195475351 is a deficient number, since it is larger than the sum of its proper divisors (34953).

195475351 is an equidigital number, since it uses as much as digits as its factorization.

195475351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34952.

The product of its digits is 94500, while the sum is 40.

The square root of 195475351 is about 13981.2499798838. The cubic root of 195475351 is about 580.3598153792.

The spelling of 195475351 in words is "one hundred ninety-five million, four hundred seventy-five thousand, three hundred fifty-one".