131412481 has 2 divisors, whose sum is σ = 131412482. Its totient is φ = 131412480.

The previous prime is 131412461. The next prime is 131412497. The reversal of 131412481 is 184214131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106502400 + 24910081 = 10320^2 + 4991^2 .

It is an emirp because it is prime and its reverse (184214131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131412481 - 2¹⁵ = 131379713 is a prime.

It is a super-2 number, since 2×131412481² = 34538480325150722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131412451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65706240 + 65706241.

It is an arithmetic number, because the mean of its divisors is an integer number (65706241).

Almost surely, 2^131412481 is an apocalyptic number.

It is an amenable number.

131412481 is a deficient number, since it is larger than the sum of its proper divisors (1).

131412481 is an equidigital number, since it uses as much as digits as its factorization.

131412481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 25.

The square root of 131412481 is about 11463.5282962969. The cubic root of 131412481 is about 508.4077999898.

The spelling of 131412481 in words is "one hundred thirty-one million, four hundred twelve thousand, four hundred eighty-one".