131913907 has 2 divisors, whose sum is σ = 131913908. Its totient is φ = 131913906.

The previous prime is 131913893. The next prime is 131913949. The reversal of 131913907 is 709319131.

It is a weak prime.

It is an emirp because it is prime and its reverse (709319131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131913907 - 2²³ = 123525299 is a prime.

It is equal to p_7480582 and since 131913907 and 7480582 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (131913007) 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, 65956953 + 65956954.

It is an arithmetic number, because the mean of its divisors is an integer number (65956954).

Almost surely, 2^131913907 is an apocalyptic number.

131913907 is a deficient number, since it is larger than the sum of its proper divisors (1).

131913907 is an equidigital number, since it uses as much as digits as its factorization.

131913907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 131913907 is about 11485.3779650476. The cubic root of 131913907 is about 509.0536172214.

The spelling of 131913907 in words is "one hundred thirty-one million, nine hundred thirteen thousand, nine hundred seven".