131755537 has 2 divisors, whose sum is σ = 131755538. Its totient is φ = 131755536.

The previous prime is 131755517. The next prime is 131755541. The reversal of 131755537 is 735557131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126697536 + 5058001 = 11256^2 + 2249^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131755537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131755496 and 131755505.

It is not a weakly prime, because it can be changed into another prime (131755517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65877768 + 65877769.

It is an arithmetic number, because the mean of its divisors is an integer number (65877769).

Almost surely, 2^131755537 is an apocalyptic number.

It is an amenable number.

131755537 is a deficient number, since it is larger than the sum of its proper divisors (1).

131755537 is an equidigital number, since it uses as much as digits as its factorization.

131755537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55125, while the sum is 37.

The square root of 131755537 is about 11478.4814762232. The cubic root of 131755537 is about 508.8498198933.

The spelling of 131755537 in words is "one hundred thirty-one million, seven hundred fifty-five thousand, five hundred thirty-seven".