136620426 has 16 divisors (see below), whose sum is σ = 276058944. Its totient is φ = 45070464.

The previous prime is 136620413. The next prime is 136620427. The reversal of 136620426 is 624026631.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 136620393 and 136620402.

It is not an unprimeable number, because it can be changed into a prime (136620427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116790 + ... + 117953.

It is an arithmetic number, because the mean of its divisors is an integer number (17253684).

Almost surely, 2^136620426 is an apocalyptic number.

136620426 is an abundant number, since it is smaller than the sum of its proper divisors (139438518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136620426 is a wasteful number, since it uses less digits than its factorization.

136620426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234845.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 136620426 is about 11688.4740663613. The cubic root of 136620426 is about 515.0371368576.

The spelling of 136620426 in words is "one hundred thirty-six million, six hundred twenty thousand, four hundred twenty-six".