131989011 has 16 divisors (see below), whose sum is σ = 219410688. Its totient is φ = 68565600.

The previous prime is 131988971. The next prime is 131989043. The reversal of 131989011 is 110989131.

It is a happy number.

It is not a de Polignac number, because 131989011 - 2⁹ = 131988499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (131989061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285460 + ... + 285921.

It is an arithmetic number, because the mean of its divisors is an integer number (13713168).

Almost surely, 2^131989011 is an apocalyptic number.

131989011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131989011 is a deficient number, since it is larger than the sum of its proper divisors (87421677).

131989011 is a wasteful number, since it uses less digits than its factorization.

131989011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571402.

The product of its (nonzero) digits is 1944, while the sum is 33.

The square root of 131989011 is about 11488.6470482821. The cubic root of 131989011 is about 509.1502072635.

The spelling of 131989011 in words is "one hundred thirty-one million, nine hundred eighty-nine thousand, eleven".