195406463 has 6 divisors (see below), whose sum is σ = 227309616. Its totient is φ = 167491212.

The previous prime is 195406433. The next prime is 195406481. The reversal of 195406463 is 364604591.

It is not a de Polignac number, because 195406463 - 2⁶ = 195406399 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 (195406433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1993895 + ... + 1993992.

It is an arithmetic number, because the mean of its divisors is an integer number (37884936).

Almost surely, 2^195406463 is an apocalyptic number.

195406463 is a deficient number, since it is larger than the sum of its proper divisors (31903153).

195406463 is an equidigital number, since it uses as much as digits as its factorization.

195406463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987901 (or 3987894 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 195406463 is about 13978.7861776336. The cubic root of 195406463 is about 580.2916319754.

The spelling of 195406463 in words is "one hundred ninety-five million, four hundred six thousand, four hundred sixty-three".