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135144412 = 221323112997
BaseRepresentation
bin10000000111000…
…10001111011100
3100102022001021121
420003202033130
5234044110122
621224340324
73230465014
oct1003421734
9312261247
10135144412
116a315aa7
12393146a4
1321cca210
1413d3cc44
15bce7bc7
hex80e23dc

135144412 has 24 divisors (see below), whose sum is σ = 265771296. Its totient is φ = 59661888.

The previous prime is 135144367. The next prime is 135144419. The reversal of 135144412 is 214441531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135144419) 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, 55303 + ... + 57694.

It is an arithmetic number, because the mean of its divisors is an integer number (11073804).

Almost surely, 2135144412 is an apocalyptic number.

It is an amenable number.

135144412 is a deficient number, since it is larger than the sum of its proper divisors (130626884).

135144412 is a wasteful number, since it uses less digits than its factorization.

135144412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113037 (or 113035 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 135144412 is about 11625.1628805794. The cubic root of 135144412 is about 513.1756381113.

Adding to 135144412 its reverse (214441531), we get a palindrome (349585943).

The spelling of 135144412 in words is "one hundred thirty-five million, one hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 4 13 23 26 46 52 92 299 598 1196 112997 225994 451988 1468961 2598931 2937922 5197862 5875844 10395724 33786103 67572206 135144412