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136341257 = 1321794507
BaseRepresentation
bin10000010000001…
…10011100001001
3100111112212001012
420020012130021
5234400410012
621310133305
73243611243
oct1010063411
9314485035
10136341257
116aa63228
12397b1235
1322328c00
1414171093
15be82622
hex8206709

136341257 has 12 divisors (see below), whose sum is σ = 148493520. Its totient is φ = 125122608.

The previous prime is 136341251. The next prime is 136341259. The reversal of 136341257 is 752143631.

It is not a de Polignac number, because 136341257 - 210 = 136340233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136341251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27998 + ... + 32504.

It is an arithmetic number, because the mean of its divisors is an integer number (12374460).

Almost surely, 2136341257 is an apocalyptic number.

It is an amenable number.

136341257 is a deficient number, since it is larger than the sum of its proper divisors (12152263).

136341257 is a wasteful number, since it uses less digits than its factorization.

136341257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712 (or 4699 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 136341257 is about 11676.5258960018. The cubic root of 136341257 is about 514.6860901594.

Adding to 136341257 its reverse (752143631), we get a palindrome (888484888).

The spelling of 136341257 in words is "one hundred thirty-six million, three hundred forty-one thousand, two hundred fifty-seven".

Divisors: 1 13 169 179 2327 4507 30251 58591 761683 806753 10487789 136341257