131153551 has 2 divisors, whose sum is σ = 131153552. Its totient is φ = 131153550.

The previous prime is 131153531. The next prime is 131153579. The reversal of 131153551 is 155351131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131153551 - 2⁷ = 131153423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131153501) 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, 65576775 + 65576776.

It is an arithmetic number, because the mean of its divisors is an integer number (65576776).

Almost surely, 2^131153551 is an apocalyptic number.

131153551 is a deficient number, since it is larger than the sum of its proper divisors (1).

131153551 is an equidigital number, since it uses as much as digits as its factorization.

131153551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1125, while the sum is 25.

The square root of 131153551 is about 11452.2290843311. The cubic root of 131153551 is about 508.0736648397.

The spelling of 131153551 in words is "one hundred thirty-one million, one hundred fifty-three thousand, five hundred fifty-one".