131529345 has 16 divisors (see below), whose sum is σ = 210589440. Its totient is φ = 70101504.

The previous prime is 131529337. The next prime is 131529347. The reversal of 131529345 is 543925131.

It is not a de Polignac number, because 131529345 - 2³ = 131529337 is a prime.

It is a super-2 number, since 2×131529345² = 34599937192258050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131529347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39921 + ... + 43089.

It is an arithmetic number, because the mean of its divisors is an integer number (13161840).

Almost surely, 2^131529345 is an apocalyptic number.

131529345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131529345 is a deficient number, since it is larger than the sum of its proper divisors (79060095).

131529345 is a wasteful number, since it uses less digits than its factorization.

131529345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944.

The product of its digits is 16200, while the sum is 33.

The square root of 131529345 is about 11468.6243726089. The cubic root of 131529345 is about 508.5584629129.

The spelling of 131529345 in words is "one hundred thirty-one million, five hundred twenty-nine thousand, three hundred forty-five".