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136166077 = 148791571
BaseRepresentation
bin10000001110110…
…11101010111101
3100111012221202001
420013123222331
5234324303302
621302302301
73242251435
oct1007335275
9314187661
10136166077
116a953653
1239727991
1322297258
14141272c5
15be4a787
hex81dbabd

136166077 has 4 divisors (see below), whose sum is σ = 136259136. Its totient is φ = 136073020.

The previous prime is 136166029. The next prime is 136166083. The reversal of 136166077 is 770661631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 770661631 = 2926574539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-136166077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136166677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44299 + ... + 47272.

It is an arithmetic number, because the mean of its divisors is an integer number (34064784).

Almost surely, 2136166077 is an apocalyptic number.

It is an amenable number.

136166077 is a deficient number, since it is larger than the sum of its proper divisors (93059).

136166077 is an equidigital number, since it uses as much as digits as its factorization.

136166077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93058.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 136166077 is about 11669.0221098428. The cubic root of 136166077 is about 514.4655617724.

The spelling of 136166077 in words is "one hundred thirty-six million, one hundred sixty-six thousand, seventy-seven".

Divisors: 1 1487 91571 136166077