136605472 has 48 divisors (see below), whose sum is σ = 286820352. Its totient is φ = 63820800.

The previous prime is 136605451. The next prime is 136605479. The reversal of 136605472 is 274506631.

It is a happy number.

It is a super-2 number, since 2×136605472² = 37322109960685568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (136605479) 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, 81313 + ... + 82975.

It is an arithmetic number, because the mean of its divisors is an integer number (5975424).

Almost surely, 2^136605472 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 136605472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143410176).

136605472 is an abundant number, since it is smaller than the sum of its proper divisors (150214880).

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

136605472 is a wasteful number, since it uses less digits than its factorization.

136605472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1833 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 136605472 is about 11687.8343588537. The cubic root of 136605472 is about 515.0183447765.

The spelling of 136605472 in words is "one hundred thirty-six million, six hundred five thousand, four hundred seventy-two".