131261411 has 2 divisors, whose sum is σ = 131261412. Its totient is φ = 131261410.

The previous prime is 131261407. The next prime is 131261461. The reversal of 131261411 is 114162131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131261411 - 2² = 131261407 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131261461) by changing a digit.

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 as a sum of consecutive naturals, namely, 65630705 + 65630706.

It is an arithmetic number, because the mean of its divisors is an integer number (65630706).

Almost surely, 2^131261411 is an apocalyptic number.

131261411 is a deficient number, since it is larger than the sum of its proper divisors (1).

131261411 is an equidigital number, since it uses as much as digits as its factorization.

131261411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 131261411 is about 11456.9372434347. The cubic root of 131261411 is about 508.2129057252.

The spelling of 131261411 in words is "one hundred thirty-one million, two hundred sixty-one thousand, four hundred eleven".