131844545 has 24 divisors (see below), whose sum is σ = 184680000. Its totient is φ = 90095712.

The previous prime is 131844529. The next prime is 131844619. The reversal of 131844545 is 545448131.

It is not a de Polignac number, because 131844545 - 2⁴ = 131844529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87206 + ... + 88704.

It is an arithmetic number, because the mean of its divisors is an integer number (7695000).

Almost surely, 2^131844545 is an apocalyptic number.

It is an amenable number.

131844545 is a deficient number, since it is larger than the sum of its proper divisors (52835455).

131844545 is a wasteful number, since it uses less digits than its factorization.

131844545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877 (or 1870 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 131844545 is about 11482.3579895420. The cubic root of 131844545 is about 508.9643793029.

The spelling of 131844545 in words is "one hundred thirty-one million, eight hundred forty-four thousand, five hundred forty-five".