136425222 has 80 divisors (see below), whose sum is σ = 321472800. Its totient is φ = 43182720.

The previous prime is 136425137. The next prime is 136425229. The reversal of 136425222 is 222524631.

It is a happy number.

136425222 is a `hidden beast` number, since 13 + 6 + 425 + 222 = 666.

It is a super-2 number, since 2×136425222² = 37223682395498568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136425229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 333354 + ... + 333762.

It is an arithmetic number, because the mean of its divisors is an integer number (4018410).

Almost surely, 2^136425222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136425222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160736400).

136425222 is an abundant number, since it is smaller than the sum of its proper divisors (185047578).

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

136425222 is a wasteful number, since it uses less digits than its factorization.

136425222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 514 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 136425222 is about 11680.1208041698. The cubic root of 136425222 is about 514.7917239936.

Adding to 136425222 its reverse (222524631), we get a palindrome (358949853).

The spelling of 136425222 in words is "one hundred thirty-six million, four hundred twenty-five thousand, two hundred twenty-two".