131519357 has 2 divisors, whose sum is σ = 131519358. Its totient is φ = 131519356.

The previous prime is 131519309. The next prime is 131519363. The reversal of 131519357 is 753915131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131354521 + 164836 = 11461^2 + 406^2 .

It is an emirp because it is prime and its reverse (753915131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131519357 - 2¹⁶ = 131453821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131513357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65759678 + 65759679.

It is an arithmetic number, because the mean of its divisors is an integer number (65759679).

Almost surely, 2^131519357 is an apocalyptic number.

It is an amenable number.

131519357 is a deficient number, since it is larger than the sum of its proper divisors (1).

131519357 is an equidigital number, since it uses as much as digits as its factorization.

131519357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14175, while the sum is 35.

The square root of 131519357 is about 11468.1889154304. The cubic root of 131519357 is about 508.5455897133.

The spelling of 131519357 in words is "one hundred thirty-one million, five hundred nineteen thousand, three hundred fifty-seven".