131541546 has 16 divisors (see below), whose sum is σ = 278558784. Its totient is φ = 41267904.

The previous prime is 131541499. The next prime is 131541589. The reversal of 131541546 is 645145131.

It is a happy 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, 644710 + ... + 644913.

It is an arithmetic number, because the mean of its divisors is an integer number (17409924).

Almost surely, 2^131541546 is an apocalyptic number.

131541546 is an abundant number, since it is smaller than the sum of its proper divisors (147017238).

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

131541546 is a wasteful number, since it uses less digits than its factorization.

131541546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289645.

The product of its digits is 7200, while the sum is 30.

The square root of 131541546 is about 11469.1562898062. The cubic root of 131541546 is about 508.5741874899.

Adding to 131541546 its reverse (645145131), we get a palindrome (776686677).

The spelling of 131541546 in words is "one hundred thirty-one million, five hundred forty-one thousand, five hundred forty-six".