136552021245 has 24 divisors (see below), whose sum is σ = 236704774176. Its totient is φ = 72823251168.

The previous prime is 136552021219. The next prime is 136552021259. The reversal of 136552021245 is 542120255631.

136552021245 is a `hidden beast` number, since 1 + 3 + 6 + 5 + 520 + 2 + 124 + 5 = 666.

It is not a de Polignac number, because 136552021245 - 2⁵ = 136552021213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 721882 + ... + 891188.

It is an arithmetic number, because the mean of its divisors is an integer number (9862698924).

Almost surely, 2^136552021245 is an apocalyptic number.

136552021245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136552021245 is a deficient number, since it is larger than the sum of its proper divisors (100152752931).

136552021245 is a wasteful number, since it uses less digits than its factorization.

136552021245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187241 (or 187238 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 136552021245 its reverse (542120255631), we get a palindrome (678672276876).

The spelling of 136552021245 in words is "one hundred thirty-six billion, five hundred fifty-two million, twenty-one thousand, two hundred forty-five".