136455540 has 48 divisors (see below), whose sum is σ = 411468288. Its totient is φ = 33588864.

The previous prime is 136455499. The next prime is 136455547. The reversal of 136455540 is 45554631.

It is a super-2 number, since 2×136455540² = 37240228793383200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136455547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86692 + ... + 88251.

It is an arithmetic number, because the mean of its divisors is an integer number (8572256).

Almost surely, 2^136455540 is an apocalyptic number.

136455540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136455540 is an abundant number, since it is smaller than the sum of its proper divisors (275012748).

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

136455540 is a wasteful number, since it uses less digits than its factorization.

136455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174968 (or 174966 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 136455540 is about 11681.4185782378. The cubic root of 136455540 is about 514.8298555044.

Subtracting from 136455540 its reverse (45554631), we obtain a palindrome (90900909).

The spelling of 136455540 in words is "one hundred thirty-six million, four hundred fifty-five thousand, five hundred forty".