131554534 has 12 divisors (see below), whose sum is σ = 209623284. Its totient is φ = 61907744.

The previous prime is 131554519. The next prime is 131554543. The reversal of 131554534 is 435455131.

It is a junction number, because it is equal to n+sod(n) for n = 131554496 and 131554505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113224 + ... + 114379.

It is an arithmetic number, because the mean of its divisors is an integer number (17468607).

Almost surely, 2^131554534 is an apocalyptic number.

131554534 is a deficient number, since it is larger than the sum of its proper divisors (78068750).

131554534 is a wasteful number, since it uses less digits than its factorization.

131554534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227639 (or 227622 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 131554534 is about 11469.7224901041. The cubic root of 131554534 is about 508.5909252795.

It can be divided in two parts, 13155 and 4534, that added together give a square (17689 = 133²).

The spelling of 131554534 in words is "one hundred thirty-one million, five hundred fifty-four thousand, five hundred thirty-four".