131998526 has 8 divisors (see below), whose sum is σ = 215997624. Its totient is φ = 59999320.

The previous prime is 131998511. The next prime is 131998547. The reversal of 131998526 is 625899131.

It is a happy number.

131998526 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×131998526² = 34847221732345352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2999945 + ... + 2999988.

It is an arithmetic number, because the mean of its divisors is an integer number (26999703).

Almost surely, 2^131998526 is an apocalyptic number.

131998526 is a deficient number, since it is larger than the sum of its proper divisors (83999098).

131998526 is a wasteful number, since it uses less digits than its factorization.

131998526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999946.

The product of its digits is 116640, while the sum is 44.

The square root of 131998526 is about 11489.0611452808. The cubic root of 131998526 is about 509.1624417361.

The spelling of 131998526 in words is "one hundred thirty-one million, nine hundred ninety-eight thousand, five hundred twenty-six".