131434742 has 16 divisors (see below), whose sum is σ = 216552960. Its totient is φ = 59551272.

The previous prime is 131434739. The next prime is 131434747. The reversal of 131434742 is 247434131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131434747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74318 + ... + 76065.

It is an arithmetic number, because the mean of its divisors is an integer number (13534560).

Almost surely, 2^131434742 is an apocalyptic number.

131434742 is a deficient number, since it is larger than the sum of its proper divisors (85118218).

131434742 is a wasteful number, since it uses less digits than its factorization.

131434742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150427.

The product of its digits is 8064, while the sum is 29.

The square root of 131434742 is about 11464.4992040647. The cubic root of 131434742 is about 508.4365061090.

Adding to 131434742 its reverse (247434131), we get a palindrome (378868873).

The spelling of 131434742 in words is "one hundred thirty-one million, four hundred thirty-four thousand, seven hundred forty-two".