131351534 has 4 divisors (see below), whose sum is σ = 197027304. Its totient is φ = 65675766.

The previous prime is 131351531. The next prime is 131351569. The reversal of 131351534 is 435153131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131351531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32837882 + ... + 32837885.

It is an arithmetic number, because the mean of its divisors is an integer number (49256826).

Almost surely, 2^131351534 is an apocalyptic number.

131351534 is a deficient number, since it is larger than the sum of its proper divisors (65675770).

131351534 is an equidigital number, since it uses as much as digits as its factorization.

131351534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65675769.

The product of its digits is 2700, while the sum is 26.

The square root of 131351534 is about 11460.8696877680. The cubic root of 131351534 is about 508.3291907095.

The spelling of 131351534 in words is "one hundred thirty-one million, three hundred fifty-one thousand, five hundred thirty-four".