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131339966 = 267980149
BaseRepresentation
bin1111101010000…
…01011010111110
3100011010202120012
413311001122332
5232110334331
621011023222
73153241232
oct765013276
9304122505
10131339966
116815772a
1237b9ab12
1321297674
141362c5c2
15b7e582b
hex7d416be

131339966 has 8 divisors (see below), whose sum is σ = 199950600. Its totient is φ = 64689768.

The previous prime is 131339953. The next prime is 131339969. The reversal of 131339966 is 669933131.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131339969) 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, 489941 + ... + 490208.

It is an arithmetic number, because the mean of its divisors is an integer number (24993825).

Almost surely, 2131339966 is an apocalyptic number.

131339966 is a deficient number, since it is larger than the sum of its proper divisors (68610634).

131339966 is an equidigital number, since it uses as much as digits as its factorization.

131339966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980218.

The product of its digits is 78732, while the sum is 41.

The square root of 131339966 is about 11460.3650029133. The cubic root of 131339966 is about 508.3142675879.

The spelling of 131339966 in words is "one hundred thirty-one million, three hundred thirty-nine thousand, nine hundred sixty-six".

Divisors: 1 2 67 134 980149 1960298 65669983 131339966