131700407 has 2 divisors, whose sum is σ = 131700408. Its totient is φ = 131700406.

The previous prime is 131700391. The next prime is 131700409. The reversal of 131700407 is 704007131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131700407 - 2⁴ = 131700391 is a prime.

Together with 131700409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131700409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65850203 + 65850204.

It is an arithmetic number, because the mean of its divisors is an integer number (65850204).

Almost surely, 2^131700407 is an apocalyptic number.

131700407 is a deficient number, since it is larger than the sum of its proper divisors (1).

131700407 is an equidigital number, since it uses as much as digits as its factorization.

131700407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 131700407 is about 11476.0797749057. The cubic root of 131700407 is about 508.7788379196.

Adding to 131700407 its reverse (704007131), we get a palindrome (835707538).

The spelling of 131700407 in words is "one hundred thirty-one million, seven hundred thousand, four hundred seven".