131429434 has 4 divisors (see below), whose sum is σ = 197144154. Its totient is φ = 65714716.

The previous prime is 131429413. The next prime is 131429447. The reversal of 131429434 is 434924131.

131429434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 84548025 + 46881409 = 9195^2 + 6847^2 .

It is a super-2 number, since 2×131429434² = 34547392243120712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131429396 and 131429405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32857357 + ... + 32857360.

Almost surely, 2^131429434 is an apocalyptic number.

131429434 is a deficient number, since it is larger than the sum of its proper divisors (65714720).

131429434 is an equidigital number, since it uses as much as digits as its factorization.

131429434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65714719.

The product of its digits is 10368, while the sum is 31.

The square root of 131429434 is about 11464.2677044807. The cubic root of 131429434 is about 508.4296616039.

The spelling of 131429434 in words is "one hundred thirty-one million, four hundred twenty-nine thousand, four hundred thirty-four".