136402004 has 6 divisors (see below), whose sum is σ = 238703514. Its totient is φ = 68201000.

The previous prime is 136402001. The next prime is 136402009. The reversal of 136402004 is 400204631.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 134606404 + 1795600 = 11602^2 + 1340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136402001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17050247 + ... + 17050254.

It is an arithmetic number, because the mean of its divisors is an integer number (39783919).

Almost surely, 2^136402004 is an apocalyptic number.

It is an amenable number.

136402004 is a deficient number, since it is larger than the sum of its proper divisors (102301510).

136402004 is a wasteful number, since it uses less digits than its factorization.

136402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34100505 (or 34100503 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 136402004 is about 11679.1268509251. The cubic root of 136402004 is about 514.7625184646.

Adding to 136402004 its reverse (400204631), we get a palindrome (536606635).

The spelling of 136402004 in words is "one hundred thirty-six million, four hundred two thousand, four".