131557059 has 12 divisors (see below), whose sum is σ = 191873136. Its totient is φ = 86852592.

The previous prime is 131557057. The next prime is 131557061. The reversal of 131557059 is 950755131.

131557059 is a `hidden beast` number, since 1 + 31 + 5 + 570 + 59 = 666.

It is an interprime number because it is at equal distance from previous prime (131557057) and next prime (131557061).

It is not a de Polignac number, because 131557059 - 2¹ = 131557057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131557057) 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 in 11 ways as a sum of consecutive naturals, for example, 70032 + ... + 71885.

It is an arithmetic number, because the mean of its divisors is an integer number (15989428).

Almost surely, 2^131557059 is an apocalyptic number.

131557059 is a deficient number, since it is larger than the sum of its proper divisors (60316077).

131557059 is a wasteful number, since it uses less digits than its factorization.

131557059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142026 (or 142023 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 36.

The square root of 131557059 is about 11469.8325619862. The cubic root of 131557059 is about 508.5941791490.

The spelling of 131557059 in words is "one hundred thirty-one million, five hundred fifty-seven thousand, fifty-nine".