136405066 has 32 divisors (see below), whose sum is σ = 247512960. Its totient is φ = 55074816.

The previous prime is 136405057. The next prime is 136405079. The reversal of 136405066 is 660504631.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50010 + ... + 52666.

It is an arithmetic number, because the mean of its divisors is an integer number (7734780).

Almost surely, 2^136405066 is an apocalyptic number.

136405066 is a deficient number, since it is larger than the sum of its proper divisors (111107894).

136405066 is a wasteful number, since it uses less digits than its factorization.

136405066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 136405066 is about 11679.2579387562. The cubic root of 136405066 is about 514.7663702922.

Adding to 136405066 its reverse (660504631), we get a palindrome (796909697).

The spelling of 136405066 in words is "one hundred thirty-six million, four hundred five thousand, sixty-six".