136402254 has 96 divisors (see below), whose sum is σ = 341172000. Its totient is φ = 39094272.

The previous prime is 136402243. The next prime is 136402261. The reversal of 136402254 is 452204631.

136402254 is a `hidden beast` number, since 1 + 3 + 6 + 402 + 254 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 168202 + ... + 169010.

It is an arithmetic number, because the mean of its divisors is an integer number (3553875).

Almost surely, 2^136402254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136402254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170586000).

136402254 is an abundant number, since it is smaller than the sum of its proper divisors (204769746).

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

136402254 is a wasteful number, since it uses less digits than its factorization.

136402254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 879 counting only the distinct ones).

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

The square root of 136402254 is about 11679.1375537751. The cubic root of 136402254 is about 514.7628329530.

Adding to 136402254 its reverse (452204631), we get a palindrome (588606885).

The spelling of 136402254 in words is "one hundred thirty-six million, four hundred two thousand, two hundred fifty-four".