195531264 has 60 divisors (see below), whose sum is σ = 564329766. Its totient is φ = 65175552.

The previous prime is 195531247. The next prime is 195531269. The reversal of 195531264 is 462135591.

It can be written as a sum of positive squares in only one way, i.e., 161798400 + 33732864 = 12720^2 + 5808^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (195531269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16609 + ... + 25824.

Almost surely, 2^195531264 is an apocalyptic number.

It is an amenable number.

195531264 is an abundant number, since it is smaller than the sum of its proper divisors (368798502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195531264 is an equidigital number, since it uses as much as digits as its factorization.

195531264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42457 (or 42438 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 195531264 is about 13983.2494077736. The cubic root of 195531264 is about 580.4151447165.

The spelling of 195531264 in words is "one hundred ninety-five million, five hundred thirty-one thousand, two hundred sixty-four".