131436434 has 8 divisors (see below), whose sum is σ = 197272380. Its totient is φ = 65678976.

The previous prime is 131436419. The next prime is 131436443. The reversal of 131436434 is 434634131.

It can be written as a sum of positive squares in 2 ways, for example, as 131171209 + 265225 = 11453^2 + 515^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131436397 and 131436406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15239 + ... + 22250.

Almost surely, 2^131436434 is an apocalyptic number.

131436434 is a deficient number, since it is larger than the sum of its proper divisors (65835946).

131436434 is a wasteful number, since it uses less digits than its factorization.

131436434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39244.

The product of its digits is 10368, while the sum is 29.

The square root of 131436434 is about 11464.5729968455. The cubic root of 131436434 is about 508.4386878530.

The spelling of 131436434 in words is "one hundred thirty-one million, four hundred thirty-six thousand, four hundred thirty-four".