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135145155 = 3517529981
BaseRepresentation
bin10000000111000…
…10011011000011
3100102022002022010
420003202123003
5234044121110
621224344003
73230500125
oct1003423303
9312262263
10135145155
116a316612
1239315003
1321cca662
1413d3d215
15bce8020
hex80e26c3

135145155 has 16 divisors (see below), whose sum is σ = 228952224. Its totient is φ = 67837440.

The previous prime is 135145141. The next prime is 135145159. The reversal of 135145155 is 551541531.

It is not a de Polignac number, because 135145155 - 24 = 135145139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135145159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264736 + ... + 265245.

It is an arithmetic number, because the mean of its divisors is an integer number (14309514).

Almost surely, 2135145155 is an apocalyptic number.

135145155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135145155 is a deficient number, since it is larger than the sum of its proper divisors (93807069).

135145155 is a wasteful number, since it uses less digits than its factorization.

135145155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530006.

The product of its digits is 7500, while the sum is 30.

The square root of 135145155 is about 11625.1948370769. The cubic root of 135145155 is about 513.1765785591.

Adding to 135145155 its reverse (551541531), we get a palindrome (686686686).

The spelling of 135145155 in words is "one hundred thirty-five million, one hundred forty-five thousand, one hundred fifty-five".

Divisors: 1 3 5 15 17 51 85 255 529981 1589943 2649905 7949715 9009677 27029031 45048385 135145155