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131532 = 22397113
BaseRepresentation
bin100000000111001100
320200102120
4200013030
513202112
62452540
71055322
oct400714
9220376
10131532
118a905
1264150
1347b3b
1435d12
1528e8c
hex201cc

131532 has 24 divisors (see below), whose sum is σ = 312816. Its totient is φ = 43008.

The previous prime is 131519. The next prime is 131543. The reversal of 131532 is 235131.

Adding to 131532 its reverse (235131), we get a palindrome (366663).

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 1220.

It is an arithmetic number, because the mean of its divisors is an integer number (13034).

2131532 is an apocalyptic number.

131532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131532 is an abundant number, since it is smaller than the sum of its proper divisors (181284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131532 is a wasteful number, since it uses less digits than its factorization.

131532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its digits is 90, while the sum is 15.

The square root of 131532 is about 362.6734068001. The cubic root of 131532 is about 50.8561884744.

The spelling of 131532 in words is "one hundred thirty-one thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 12 97 113 194 226 291 339 388 452 582 678 1164 1356 10961 21922 32883 43844 65766 131532