136040434 has 4 divisors (see below), whose sum is σ = 204060654. Its totient is φ = 68020216.

The previous prime is 136040417. The next prime is 136040441. The reversal of 136040434 is 434040631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434040631 = 331 ⋅1311301.

It can be written as a sum of positive squares in only one way, i.e., 134490409 + 1550025 = 11597^2 + 1245^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136040399 and 136040408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34010107 + ... + 34010110.

Almost surely, 2^136040434 is an apocalyptic number.

136040434 is a deficient number, since it is larger than the sum of its proper divisors (68020220).

136040434 is an equidigital number, since it uses as much as digits as its factorization.

136040434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68020219.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 136040434 is about 11663.6372543045. The cubic root of 136040434 is about 514.3072773954.

The spelling of 136040434 in words is "one hundred thirty-six million, forty thousand, four hundred thirty-four".