131000542 has 8 divisors (see below), whose sum is σ = 196618536. Its totient is φ = 65461032.

The previous prime is 131000539. The next prime is 131000543. The reversal of 131000542 is 245000131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131000542² = 34322284008587528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15253 + ... + 22240.

It is an arithmetic number, because the mean of its divisors is an integer number (24577317).

Almost surely, 2^131000542 is an apocalyptic number.

131000542 is a deficient number, since it is larger than the sum of its proper divisors (65617994).

131000542 is a wasteful number, since it uses less digits than its factorization.

131000542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 131000542 is about 11445.5468196150. The cubic root of 131000542 is about 507.8760082408.

Adding to 131000542 its reverse (245000131), we get a palindrome (376000673).

The spelling of 131000542 in words is "one hundred thirty-one million, five hundred forty-two", and thus it is an aban number.