195261034531 has 4 divisors (see below), whose sum is σ = 203750644752. Its totient is φ = 186771424312.

The previous prime is 195261034511. The next prime is 195261034561. The reversal of 195261034531 is 135430162591.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 195261034531 - 2⁵ = 195261034499 is a prime.

It is a super-2 number, since 2×195261034531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195261034511) 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, 4244805076 + ... + 4244805121.

It is an arithmetic number, because the mean of its divisors is an integer number (50937661188).

Almost surely, 2^195261034531 is an apocalyptic number.

195261034531 is a deficient number, since it is larger than the sum of its proper divisors (8489610221).

195261034531 is an equidigital number, since it uses as much as digits as its factorization.

195261034531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8489610220.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 195261034531 in words is "one hundred ninety-five billion, two hundred sixty-one million, thirty-four thousand, five hundred thirty-one".