131247460 has 12 divisors (see below), whose sum is σ = 275619708. Its totient is φ = 52498976.

The previous prime is 131247449. The next prime is 131247461. The reversal of 131247460 is 64742131.

It can be written as a sum of positive squares in 2 ways, for example, as 68425984 + 62821476 = 8272^2 + 7926^2 .

It is a super-3 number, since 3×131247460³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131247461) 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, 3281167 + ... + 3281206.

It is an arithmetic number, because the mean of its divisors is an integer number (22968309).

Almost surely, 2^131247460 is an apocalyptic number.

131247460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131247460 is an abundant number, since it is smaller than the sum of its proper divisors (144372248).

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

131247460 is a wasteful number, since it uses less digits than its factorization.

131247460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6562382 (or 6562380 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 131247460 is about 11456.3283821650. The cubic root of 131247460 is about 508.1949001047.

Adding to 131247460 its reverse (64742131), we get a palindrome (195989591).

The spelling of 131247460 in words is "one hundred thirty-one million, two hundred forty-seven thousand, four hundred sixty".