131201583 has 8 divisors (see below), whose sum is σ = 175293696. Its totient is φ = 87288600.

The previous prime is 131201573. The next prime is 131201617. The reversal of 131201583 is 385102131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-131201583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43063 + ... + 46008.

It is an arithmetic number, because the mean of its divisors is an integer number (21911712).

Almost surely, 2^131201583 is an apocalyptic number.

131201583 is a deficient number, since it is larger than the sum of its proper divisors (44092113).

131201583 is an equidigital number, since it uses as much as digits as its factorization.

131201583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89565.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 131201583 is about 11454.3259513600. The cubic root of 131201583 is about 508.1356807378.

The spelling of 131201583 in words is "one hundred thirty-one million, two hundred one thousand, five hundred eighty-three".