131525445 has 16 divisors (see below), whose sum is σ = 210592512. Its totient is φ = 70096320.

The previous prime is 131525437. The next prime is 131525453. The reversal of 131525445 is 544525131.

It is an interprime number because it is at equal distance from previous prime (131525437) and next prime (131525453).

It is not a de Polignac number, because 131525445 - 2³ = 131525437 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 28660 + ... + 32930.

It is an arithmetic number, because the mean of its divisors is an integer number (13162032).

Almost surely, 2^131525445 is an apocalyptic number.

131525445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131525445 is a deficient number, since it is larger than the sum of its proper divisors (79067067).

131525445 is a wasteful number, since it uses less digits than its factorization.

131525445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6332.

The product of its digits is 12000, while the sum is 30.

The square root of 131525445 is about 11468.4543422381. The cubic root of 131525445 is about 508.5534364107.

The spelling of 131525445 in words is "one hundred thirty-one million, five hundred twenty-five thousand, four hundred forty-five".