136240224 has 48 divisors (see below), whose sum is σ = 373185792. Its totient is φ = 43438208.

The previous prime is 136240219. The next prime is 136240229. The reversal of 136240224 is 422042631.

It is an interprime number because it is at equal distance from previous prime (136240219) and next prime (136240229).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×136240224² = 37122797271140352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 136240194 and 136240203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136240229) 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, 28644 + ... + 33059.

It is an arithmetic number, because the mean of its divisors is an integer number (7774704).

Almost surely, 2^136240224 is an apocalyptic number.

It is an amenable number.

136240224 is an abundant number, since it is smaller than the sum of its proper divisors (236945568).

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

136240224 is a wasteful number, since it uses less digits than its factorization.

136240224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61739 (or 61731 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 136240224 is about 11672.1987645859. The cubic root of 136240224 is about 514.5589260841.

Adding to 136240224 its reverse (422042631), we get a palindrome (558282855).

The spelling of 136240224 in words is "one hundred thirty-six million, two hundred forty thousand, two hundred twenty-four".