136465408 has 44 divisors (see below), whose sum is σ = 276787152. Its totient is φ = 67235840.

The previous prime is 136465349. The next prime is 136465411. The reversal of 136465408 is 804564631.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71766 + ... + 73642.

Almost surely, 2^136465408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136465408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138393576).

136465408 is an abundant number, since it is smaller than the sum of its proper divisors (140321744).

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

136465408 is an equidigital number, since it uses as much as digits as its factorization.

136465408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 136465408 is about 11681.8409508091. The cubic root of 136465408 is about 514.8422654526.

The spelling of 136465408 in words is "one hundred thirty-six million, four hundred sixty-five thousand, four hundred eight".