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135887023 is a prime number
BaseRepresentation
bin10000001100101…
…11100010101111
3100110200202221201
420012113202233
5234241341043
621252310331
73240010036
oct1006274257
9313622851
10135887023
116a782a28
12396123a7
13221ca22c
141409371d
15bde2c4d
hex81978af

135887023 has 2 divisors, whose sum is σ = 135887024. Its totient is φ = 135887022.

The previous prime is 135887021. The next prime is 135887029. The reversal of 135887023 is 320788531.

135887023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135887023 - 21 = 135887021 is a prime.

Together with 135887021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135887021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67943511 + 67943512.

It is an arithmetic number, because the mean of its divisors is an integer number (67943512).

Almost surely, 2135887023 is an apocalyptic number.

135887023 is a deficient number, since it is larger than the sum of its proper divisors (1).

135887023 is an equidigital number, since it uses as much as digits as its factorization.

135887023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 135887023 is about 11657.0589343968. The cubic root of 135887023 is about 514.1138788390.

The spelling of 135887023 in words is "one hundred thirty-five million, eight hundred eighty-seven thousand, twenty-three".