131230965 has 8 divisors (see below), whose sum is σ = 209969568. Its totient is φ = 69989840.

The previous prime is 131230907. The next prime is 131230987. The reversal of 131230965 is 569032131.

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

It is not a de Polignac number, because 131230965 - 2⁶ = 131230901 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374351 + ... + 4374380.

It is an arithmetic number, because the mean of its divisors is an integer number (26246196).

Almost surely, 2^131230965 is an apocalyptic number.

131230965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131230965 is a deficient number, since it is larger than the sum of its proper divisors (78738603).

131230965 is an equidigital number, since it uses as much as digits as its factorization.

131230965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748739.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 131230965 is about 11455.6084517585. The cubic root of 131230965 is about 508.1736094677.

The spelling of 131230965 in words is "one hundred thirty-one million, two hundred thirty thousand, nine hundred sixty-five".